I've had bisexual thoughts for a while, but I had always been nervous to act on them. I had checked out a few websites, but the guys tended to be pretty flaky. I get seriously turned on by both men and women, and especially love watching the women work out at my gym.

The gym I go to is semi-private, so there are rarely more than a dozen people there. The owner, Rob, who is about 40, is super cool and will often let me work out whenever he's there. My workouts tend to be a combination of weights and aerobics, making for a great all-around workout in an hour.

Each day of the week focuses on a particular theme, and Wednesday is the day of high aerobic and agility. It's often the day we sweat the most, and Amy often leads that class. Amy looks mid-30s, about 5'5", with a smoking hot body that is strong and moves with incredible smoothness. She has these deep hazel eyes and brown hair that goes to the middle of her shoulder blades, which is usually up in a ponytail or braid.

One Wednesday, after a particularly brutal workout, I was so ready for the shower and the ability to relax. In the locker room, I was the only one there, which was the norm as most people went home to shower. I undressed, thinking about Amy's body as she showed us the hurdle agility drills. She would have one leg go over the hurdle as she walked down the side of the hurdle.

My hips are not very flexible, so she would show me some hip stretching exercises. This had us lying on the ground next to each other with me paying particular attention to her thighs, hips, and crotch area.

I slip into the shower thinking about Amy's great ass and legs. I thought about how great her pussy must look and taste. I was lost in my thoughts as I soaped up and noticed my cock was at full mast, thinking about how hot Amy is. I finished up my shower with my cock still awfully sensitive and needing to release.

I stepped out of the shower, and Rob was right there getting changed! He looked over at me, saw my cock, and asked, "Are you OK, Tom?"

I was completely flustered and felt my heart rate accelerate faster than it did during the workout. Wow. I stammered, "Uh, yeah. Sorry. I...I was just thinking about Amy."

Rob replied, "Yeah, she is a hottie for sure. Unfortunately, she likes only women. It does look like you should take care of that, though. They say that sexual tension can cause a lot of anxiety. I'm OK if you do it here, in the shower or the bathroom."

I had no idea what to say. I had never had a hard-on in front of a guy, but just Rob's talking kept turning me on more. I said, "Are you sure? I am so fucking horny right now. I need to release this load."

Rob said, "Sure, why don't you just sit down. I will go get you some tissue, and I can tell you more about Amy."

I sat down on the locker room bench and started rubbing my cock. Rob came back with some tissues and started in, "Amy has a partner, Lynn, who sometimes comes in to work out with her. They are so flirtatious with each other and often touch each other as they're working out. Instead of high-fiving, though, they give each other hugs that maybe last a few seconds too long for just friends."

My cock was absolutely at full mast listening to Rob describe Amy and Lynn. Rob sat down opposite me and watched me stroke my cock. I noticed the bulge in his pants was starting to swell, too.

Rob kept going, "After their workouts, they go into the shower, but they are in the showers way too long—probably forty minutes. Once they left, I went to clean the women's locker rooms and noticed that only one shower was wet. I figured they must have shared the shower and each other. That is why they must be taking so long."

My cock was about ready to burst, and staring at Rob's bulge, I wanted to touch it, to taste it. Suddenly, the words just came out of my mouth, "Rob, it looks like you are getting turned on yourself. You can pull that out."

Rob pulled down his pants, and a gorgeous 6" cock popped out. It was straight and already hard. I had to slow down to take the moment in. The sexual tension was so high, but I wanted to see Rob's cum.

I had no idea where these thoughts came from, but I was just so in the moment, thinking about Amy's hard body. I was imagining Amy riding Rob's cock, and watching it disappear inside her pussy. She'd be bouncing up and down on that hard member, and I'd have this perfect view of her tight little ass just above his hard shaft.

Rob was staring at my cock, watching me stroke it. Thinking of him fucking Amy and then seeing him stare at my cock sent me over the edge. The cum was starting to build up, and I knew there was no holding it back. I stroked harder and faster and started shooting my load. It was super intense and had two big spurts.

Rob grunted, "That's so hot, Tom." Then he shot his load out. It was a thick set of cum that covered his hand.

Since I had the tissues, I wiped the cum off Tom's cock and hand and said, "Just helping out a bud." Rob's cock was still pulsing out a bit more cum, and I had to apply a little more energy to clean it all up.

I then took the cum-soaked tissues and cleaned my cock. The feel of Rob's cum on my cock was electric. I didn't expect to feel so erotic, but I could feel the energy surge through me.

We finished getting cleaned up, and as I left the gym, I said to Rob, "This is just between us, right? I mean, there's no need to tell anyone about this."

Rob replied, "Definitely not. I've never done that before, and I have a gym to run."

I went home, hugged my wife Diane, and acted as if nothing had ever happened. Unfortunately, something happened. I couldn't stop thinking about Rob's cock. I thought about him stroking himself, his nice load of cum, the feel as I wiped it clean, and what it'd be like for him to fuck Diane.

What?!? I did not want Rob to fuck my wife, and I definitely did not want my wife to realize that I secretly craved Rob's cock.

A few days later, Diane and I were having sex and sharing fantasies as we did so. We were both comfortable sharing as we knew we were fully committed to the marriage. Diane was telling me about her fantasy to fuck a yoga instructor after a class. She would be checking him out during the class, and he'd be touching her throughout the class, sending sexual shockwaves through her body. She would mount him right in the yoga room after everyone had left.

This was just so hot listening to her describe her fantasy, and after a few minutes, she came from me, thrusting into her. As she pushed her hips forward and accelerated her breathing, I climaxed and shot my load into her. It was so great to release like that and feel her smooth pussy gripping my cock. As I came through, Rob's cock popped into my head, and well, made it even more intense.

We came down and were lying naked next to each other. I loved her tight, sexy body and glided my hands up and down her side.

I said, "Hey, Babe. Do you think we would ever act on our fantasies?"

Diane propped up on an elbow and had the smirkiest smile as she replied, "I do not know. I think it could be fun, but it would have to be with someone or people we really trust and feel safe with."

I replied, "I get it. There is someone, though, that I think might be willing to try it out."

Diane got really nervous all of a sudden. "I don't know. Are you thinking of a guy or a girl?"

I replied, "A guy. In fact, it would be the guy who owns the gym I go to. He and I have talked about sex a bit, and he is super chill and sexy."

Diane seemed a bit nervous still, so I kept running my hands down her body to her crotch. I slid my fingers up and down her soaking wet lips.

I said, "I have seen him naked in the gym showers, and he is pretty good-looking with a nice package."

Diane reached forward and grabbed my flaccid cock. It took no time for it to be back at full attention.

Diane asked, "Have you ever talked to him about me?"

I replied, "I have, and I mentioned how we share fantasies. I told him about my fantasy of being with you and having another guy there."

Diane pushed her hips forward, and my fingers easily slid into her pussy. She was obviously ready for round two.

With a huge look of lust on her face, Diane said, "Tell me how this would go, Tom."

I said, "His name is Rob, and we would each be on your side. We would be rubbing our hands up and down your body. Rob would reach a hand up your shirt and cup your breast. He would gently massage your nipples and send shivers down your body."

Diane said, "I'd reach down to his crotch and inside of his shorts. I'd feel his cock be so hard. I turn my head to look you deep in the eyes and say, 'I want his cock inside me.' You nod approval."

I say, "His cock is so sexy going into you. I love watching you two go at it."

Diane said, "You should be part of the fun too. I stroke your cock, but I really want it in my mouth. I want a cock in my mouth and one in my pussy at the same time."

I say, "I position myself so you're able to take me in your mouth, and I love watching your lips secure themselves around my shaft."

Diane straddled me, and my rock-hard cock slid right into her. It felt so good, and bolts of energy shot through my body.

Diane gasped as she took my full 6" inside of her. She had her eyes closed as she ground her hips onto my cock. She then said, "Rob would be thrusting his cock into me, and your cock would be filling my mouth. I want his cock so badly."

I said, "Rob would be grabbing your hips to control your motions on his cock. He'd be thrusting his hips forward to fill you with his cock. I could see it slide deep inside your pussy. I'd have to stop and just watch Rob thrust harder. He's just filled with lust for your rock-hard body. I can hear his body slapping yours as you give in to lust and clinch down on his cock."

Diane said, "I want his cum! Cum inside me, Rob! Please..."

Just then, I felt my cum building in my balls. I knew I wouldn't be able to hold on long. I knew Diane was lost in the moment, thinking of Rob fucking her hard. I started to release my load, which sent Diane over the edge. She grabbed my shoulders and ground hard against my crotch as her body twisted and squirmed against me.

After a few minutes, we both settled down. The cum was dripping out of Diane's pussy, and I used my hands to clean it up. I said, "That was really good."

"Yeah. That was really intense. It seems like you really liked the idea of Rob fucking me." Diane replied.

I just sat in silence. I was thinking of Rob's hard cock. How gorgeous it was, and how good his cum looked. What he looked like as he shot his load. Then I thought of that load going into Diane's pussy. Just then, I felt Diane's hand stroking my cock.

Diane said, "It's OK. It's just a fantasy. It's just for fun. I love you, honey."

With that, Diane got up and went to the bathroom to clean up.

Over the next few weeks, I couldn't stop thinking about Rob, me, and Diane doing a threesome. Sometimes it was Diane and Rob fucking. Sometimes it was Diane sucking Rob's gorgeous cock. I noticed that when I thought of what it'd be like to suck Rob's cock, my cock got instantly hard. I rubbed it through my pants, which just made my lust build more.

I searched for bisexual blowjob on my phone and watched as a guy and a girl took turns sucking on this cock. I undid my pants and started stroking my cock, and just as the guy shot his load into both of the guys' and the girl's mouths, I shot my load into my hand.

I looked at the cum in my hand and wondered what it'd taste like. Porn stories always described it as salty, and I thought, "Why not?" I brought my hand up to my mouth and licked the cum in my hand. It tasted a little salty but a little creamy too. It really wasn't like anything I had tasted before.

One Friday after work, I was working out at the gym, and Rob was there. He was doing his workout on the bench press, which was part of my workout plan for the day. I asked, "Rob, are you OK if I join you? I'm planning on doing bench today and could use a spot."

Rob said, "Sure." We got into the workout, and I couldn't help but stare at Rob's hard body and crotch. I kept thinking about his cock, which completely threw off my workout.

Eventually, it just came out when I said, "I told Diane about you." That just hung in the air for what felt like minutes but was probably less than 30 seconds.

Rob asked, "What did she say?"

I said, "We were fucking at the time, and it didn't take any time at all for her to cum on my cock...as she fantasized about fucking you."

Rob said, "Wow...that's a lot, man."

I then said, "I bet Diane would like to meet you. Maybe tomorrow? I could say I invited you over to watch the football game."

Rob paused and eventually said, "Are you sure? This is your wife here."

I said, "Yeah. I'm sure. I've been thinking a lot about our encounter a few weeks ago. I think you'd be super chill about everything, and it's just for fun. No pressure, and nothing says we have to do more than hang out for a bit."

I told Diane that Rob was going to come over to watch the football game the next day. Diane got quite flushed and immediately went into planning mode.

Diane said, "We need to plan food, drinks, and I'll make sure the basement is cleaned up. Do you think he's a beer guy?" I mean, what guy isn't a beer guy?

Eventually, Saturday rolled around, and Tom rang the doorbell. I answered the door as Diane came out of the kitchen wearing a sundress.

Rob just stared and said, "You're as lovely as Tom has described."

Diane had the biggest smile on her face, with a slight hint of devilish grin as she said, "I hope Tom hasn't told you too much about me. There's some stuff that really shouldn't be public."

We all settled down in the basement and started watching the game while we drank some beers.

I couldn't help but notice how Diane sat down between Rob and me. Rob would steal looks at Diane's firm thighs.

I said, "I'll go upstairs to heat up some nachos."

I went upstairs, turned on the oven, pulled out the chips, some hamburger, and cheese, and tossed the nachos in the oven. I then went back downstairs.

As I walked into the room, I glanced at Rob's crotch and noticed there was a very distinct bulge.

After a minute, Rob asked where the restroom was. Diane replied from down the hall to the left.

Once Rob left the room, Diane asked, "Can I show you something?"

I nodded. She grabbed my left hand and slid it to her thigh. She was staring right into my eyes as she slid my hand up that smooth, strong thigh to her crotch. I noticed right away she was not wearing any underwear, and her pussy was unbelievably wet. I slid my fingers in her, and she let out a slight moan.

Diane asked, "Are you sure you want to do this?"

I replied, "We have talked about this. We are both really turned on here. Rob is super cool and very sexy. I am good. Are you good?"

Diane nodded yes. She readjusted her sundress before Rob returned. I had to go upstairs to check on the nachos. I took a few extra minutes and thought about what Diane and Rob would be doing. I thought about Rob's 6" going into Diane. I thought about her moaning and cumming on Rob's cock. I thought about licking Diane's juices off Rob's cock. Wait?!? What?!?

When I went back downstairs. Diane and Rob weren't trying to hide it this time. Diane's sundress was hiked up to her hips, so her crotch was on full display, and Rob was gently swirling his fingers in and around her lips. Diane had pulled Rob's pants down so that his gorgeous cock was rock hard as she stroked him.

They both stared at me for my reaction. I paused and said, "It looks like the game has become a lot more fun."

Diane asked me to come over, and she and Rob stood up. She unzipped my pants to release my cock that was at full attention. She stroked it with one hand and Rob's cock with the other. I just stared at Diane stroking Rob's cock. We had fantasized about this, but here we were, really doing it.

Diane had us sit down next to each other and positioned herself between Rob's legs. She grabbed my cock with her left hand and started stroking as she grabbed Rob's cock with her right and lowered her mouth onto his shaft.

Rob leaned his head back and let out a huge gasp. "That is amazing, Diane."

Diane was slowly going up and down on Rob's shaft, and then after a minute. She repositioned herself between my legs and took my cock into her mouth. It is always fantastic getting a blowjob. This was extra intense with Rob there.

Rob got off the couch and positioned himself behind Diane. He started rubbing his cock on her back and slid a hand around her waist down to her pussy. As Rob slid his fingers into her, Diane pulled her head off my cock because the pleasure was so intense for her.

Diane leaned forward and raised her hips. Rob slid his hand from around her waist to straight down her backside. He spent some extra time on her firm ass and went back to her pussy.

Diane just said, "I want more than fingers, Rob."

Rob looked me in the eyes to make sure I was OK with it. I nodded. Rob positioned himself directly behind Diane. He placed both hands on her hips and pushed forward. Diane gasped and dropped her head into my lap. She held her breath for a bit and then said, "Oh fuck yes!"

Rob started thrusting in and out of my wife's pussy. This was even sexier than I had imagined. Diane was completely lost, and I was just there to enjoy the moment.

Rob kept pushing deeper into her. He pushed with enough force to have Diane push into me.

After a few minutes of this, Diane asked if she could move to the couch. Who were we to say no?

She positioned herself so she lay down on the couch and asked me to join her. I lay on top of her, and my cock eagerly slid into her pussy. She then called Rob over so she could also suck on his cock.

Diane had sucked my cock after it had been inside of her a few times, but she was going after Rob like she was possessed. She was stroking and sucking it so hard.

Rob said, "This is amazing. So hot!" You could tell that Rob's load was building up, and he wanted to release it.

Diane lost focus for a minute and let Rob's cock go and just focused on me thrusting into her. Rob did not move, and his cock was right there by my face. It was inches away, so gorgeous, so fucking sexy that he had just been fucking my wife with that shaft.

I leaned over and took him into my mouth. Rob immediately said, "I thought you were turned on by cock and told Diane. Keep going, buddy."

Diane immediately came as I thrust into her, and she watched me suck on Rob's cock. Her pussy clenching my cock down was so intense, but it was hard to just focus on fucking and sucking at the same time.

Diane came down and said, "Keep going, honey. You are doing great. I love watching you suck Rob's penis."

I decided that I was going to really do this. So, I started sucking with everything I had. I wanted to suck the cum right out of Rob's cock. I could feel him building.

Rob said, "I am getting close. Oh yeah."

I sucked harder and stroked the bottom of his shaft as my mouth sucked, and I bobbed up and down on his member. I felt him starting to tense up.

Diane said, "Rob, I want your cum inside me."

Disappointed I wasn't going to cum inside Diane, I slid off her, and Rob immediately took my place. His hard cock easily slid into Diane.

Diane gasped and pulled on Rob's hips to pull him deeper into her. She started pushing and pulling on him to get him to move at the tempo she wanted. Rob was happy to oblige and was looking quite satisfied with Diane's pussy wrapped around his cock.

Diane closed her eyes. Rob started thrusting faster. I could see his shaft sliding in and out of Diane's pussy. Their skin slapping was intoxicating. I could not believe how much I was turned on watching Rob fuck my wife. Just then, Diane tensed up and pushed and pulled Rob deeper and harder.

Rob thrust in harder and said, "I'm cumming!" He thrust two more times deeper into Diane and then held the position tight against her body.

They each took a minute to come down off their high. My cock was still at full mast.

Diane said, "Honey. Thank you. You are so good to me, but I need you to do something."

"What is that?" I replied.

Diane said, "I need you to clean me and Rob up."

I got up to go get some tissues from the bathroom, but Diane said, "Uh uh...no tissues. Use your mouth."

I was completely caught off guard. I didn't know what to say. I just stood there.

Diane said, "It is OK, honey. No one knows but us. Just give it a try, and if you do not like it, then you can stop."

I realized it was low threat, so I got down between Diane's thighs. I could see the cum dripping down her thighs. I leaned forward and licked up Rob's sweet and salty cum from high thigh. I was shocked that it tasted pretty good. I pushed it through my mouth and down my throat, and did not gag. I went in for the rest of it.

I felt Rob stroking my cock as I licked his cum out of Diane's pussy. This was so much that I quickly shot a huge load and collapsed in Diane's lap.

Diane said, "Wow...You were really turned on, weren't you?"

We go cleaned up, and watched the rest of the football game.

Two days later, when I went to the gym, Rob smiled a knowing smile and said, "Hi Tom."

All I could think of was sucking his cock again.

This sent me over the edge, and I immediately shot my load into Diane's pussy. I could not believe that my first threesome had turned bi so quickly. It was amazing.

We all cleaned up in the bathroom and agreed that we would probably have to watch the football game next weekend, too.