I had recently got married to my second wife and we had moved in together. My wife, who was a knockout with luscious curves, of Caribbean descent with beautiful brown skin, had two teenage daughters. The older one, Callie was about 16 or 17 at the time and had developed a habit of always barging in on us when we were in the bedroom.
At first, I think she was just used to coming into her mom's room whenever she wanted. But with me there now, her mom had to scold her a couple times and tell her it's not polite and that she needs to knock first before entering.
The next few times she would knock fast and just open the door right away, like the courtesy knock that a doctor or nurse gives before they come into your room.
Again, my wife had to say something to her. "Callie, you need to get permission to enter."
Most of the time it was no big deal, we were just watching TV or talking, but several times we were either naked in bed or starting to fool around.
"I think she's trying to catch us naked," I told my wife. "No, I doubt it," she said, not super convincingly.
Looking back on it, I think Callie was just a horny teenager with hormones raging, and desperate to learn about boys (men). She definitely wanted male attention and liked showing off a bit, I know that, based off of the skimpy outfits she would wear to the endless selfies and tiktok videos she would record.
I also noticed my wife and I had passionate sex a couple times after Callie would come in the room. There was something about knowing that my cock was just lightly covered by a sheet -- and that my step daughter knew that we were naked -- and we knew that she knew. It just brought an extra charge to the scene.
Oftentimes she and her mom would chat about this and that for several minutes. We, naked under the covers, and Callie fully clothed. Although, I must say my wife is not shy about being nude around the house. Previously, with just her two girls in the house, I think she was used to walking from the bathroom to her room in various states of undress, or even totally naked, without giving it a second thought.
This situation with the nighttime visits to our room went on and on for weeks. Sometimes as we all talked in the bedroom my wife would let the covers slip down to her waist a bit and her breasts would be exposed. Callie would glance but not say anything. Again, it was kind of normal and I think the only difference was me being there.
It was an illogical situation, if I thought about it. I could see my wife naked. My step daughter could see her mom naked, but couldn't see her naked when I was in the room? That didn't seem right to me and I wanted to push the sexuality a bit.
Sometimes I would sit up in bed more when they had these nighttime chats, and if I wasn't wearing a shirt, I didn't care. Or I would have the covers off of most of my leg. I wanted to make it obvious to Callie that I was naked -- with her mom -- right there in front of her. Of course I didn't want to do anything that might get me into trouble, but it was so exciting I wanted more, but couldn't figure out how.
The opportunity came during the summer. It was a warm night and we were sitting naked in bed drinking a few glasses of wine and starting to get a little frisky. Suddenly the knock came at the door. We quickly put the thin sheet over us and told Callie to come in. The room was thick with sexual energy.
Callie wanted to borrow one of her mom's swimsuits.
"Ok honey, they're in my closet. I'll find one for you. Is my robe there? I'm not dressed."
"Umm. I don't see it mom," Callie said as she glanced, half-heartedly, around the room.
This was my chance. "You don't need a robe," I quickly chimed in. "She's seen you naked, I've seen you naked. What's the big deal?"
"Well I guess you're right," my wife chuckled as she threw the covers off and got up to walk across the bedroom, stark naked. As she walked, I admired her large rounded ass, small waist, and decently perky, but small tits, especially for someone in their late 40's. She looked amazing. I also noticed her nipples were very pointy.
"Mom, geez!" her daughter said as my wife now brazenly walked past her and toward her closet.
"What's the matter? Don't you think your mom's beautiful?" I asked.
I wanted her to look at her mother's nakedness. I wanted her to comment. I wanted to know she was looking and thinking about it.
"Yes, but still. It's weird."
"Not at all. Really, we need to be more comfortable around each other," I asserted.
"Paul's right," my wife agreed. "Americans can be so uptight sometimes. Learning to be comfortable in your own skin is great for your self confidence."
Wow... I was getting my wife to agree. I wasn't sure it was just the wine, but I think this was sending a thrill through her as well. My wife brought out a variety of suits and haded them to Callie.
I watched intently. With her daughter fully dressed, it only highlighted the fact that my wife was nude. In fact, not only nude, but excited. Definitely excited.
Her nipples were still as hard as pebbles, but her pussy was betraying her as well. I could see her swollen labia protruding and maybe a hint of glistening moisture in between. She glanced at me and smiled a bit of a devilish grin. So she was enjoying this.
"You need to learn to but comfortable in front of adults, not just other teens. In fact, try the suits on here and show them to us."
"No!" her daughter cried almost immediately, mortified by the suggestion. She may be horny, but I knew she wouldn't want to model them in front of me, her step dad.
"Yep. You're going to. Or I'm not even going to let you go to the beach tomorrow."
"Mom!? No! It's embarrassing"
"Callie, you need to get over your shyness. What did I just say? Now just go behind the closet door, change into the first one and come out and let us see."
My wife got back into bed with me under the covers. Since Callie was basically there in the room I couldn't really ask her what had gotten into her or discuss the situation. And I couldn't jump her bones either, which is what I really wanted to do. I needed sex bad now. My cock was so hard. It was getting more difficult to keep it hidden. I had to keep shifting positions and readjusting the sheet.
I definitely didn't want Callie to see my erection. And my wife either for that matter. Even though she was the one prancing around naked, I didn't want her to think I had a massive hard on because of her daughter being in the room. Her sexy daughter. My sexy, curvy step daughter.
I took a sip of wine and before I knew it Callie was out with the first swimsuit. It was a white two piece. I need to describe my step daughter: beautiful light coffee colored skin like her mother and maybe even better curves, if that were possible. Maybe not the large butt of a middle aged woman, but still very full and round... oh so nice and round... and even bigger breasts. I mean full sized C cup tits. She looked unbelievable and she walked towards us in the white bikini.

She was holding the sides of the bikini bottoms with her hands and pulling it taut.
"Why are you holding on to the bottoms?" my wife asked.
"They're loose"
"Nonsense. You're being a bit dramatic. They're not that loose". Take your hands away and walk across the room and let's see how it moves, how it looks"
My mind was spinning. Here I was, naked, with a thin sheet covering me, watching my step daughter walking around our bedroom in a bikini so I could see how things "moved".
I locked in on her ass as she walked away from us, moving slowly up and down as she ambulated. When she walked back towards us I was locked in on her pussy.
"Ok is that enough mom??" Callie said.
"Come closer, let me see."
As she came closer I did notice a slight gaping of the bikini around her pussy and I could see the dark curly hairs sticking out slightly as she came over. I think Callie could sense this and she involuntarily pulled them tight again.
"What do you think babe? Is it a good one?"
My wife's question broke me out of my trance. I had almost forgotten that they knew I was in the room. What did I think??
"It's cute," I said. "Maybe it is a bit loose (Translation: I'm looking at your pussy Callie), so lets see the other one," I heard myself say.
During this time Callie is looking straight ahead, seemingly finding something interesting on the wall and not wanting to look at us. But I can tell she is stimulated as well. As I examine her body I can see her breathing is shallow by the way her diaphragm and neck are moving.
"Yes, good idea. Ok Callie lets see the peach colored one. I have a feeling that will fit better.
Like an obedient daughter, she goes to the closet to change again. There is no arguing from her anymore. There were so many questions in my mind at this point. Is my step daughter liking this as much as I am? Is my wife liking it as well? I'm confused and in a daze as I wait for the next modeling session.
In no time Callie is out with the next swimsuit. This one fits more snuggly and is skimpier as well. Her tits are almost falling out of the top and the bottoms are cut high on the side with the triangle in the middle pulled tight against her pussy, which I can see an outline of.
"Much better. Oh like this one!" says my wife. "Babe isn't this one gorgeous?"
Feeling bolder now, I say "Yes, it fits really well. Super cute."
This gets a slight smile from Callie and I can see she is a bit more relaxed and liking the attention. I am hoping the show is not over, but there are no more suits to try on and this one seems to fit so... I'm expecting Callie to run back downstairs to her room. But she doesn't. She just stands her for what seems like minutes, but is only a few seconds. She's waiting for instructions. She wants to show off!
"Ok lets see some more walking then. With confidence!" my wife instructs. Callie does several more back and forths. Hips swinging a bit more now, chest out, boobs bouncing. She's clearly enjoying it and not in her shell any longer.
My wife has her do some poses: legs together on tip toes, looking back at us; hand on hips, etc. She has her come closer and does some adjusting to the suit. I am looking at her bikini bottoms again and there is a definite camel toe happening as my wife pulls things this way and that.
"You look beautiful honey. Confident and sexy. See this isn't so bad? You're even getting more confident in front of Paul aren't you?"
"I guess so."
"Good. After all, you can't be too shy around men. Paul, she's looking good isn't she?
"Amazing," I say. "I love the fit." My mouth feels dry and I don't know what to say. I am so horny and my cock is rock hard at this point and clearly visible beneath the sheet, if anyone wanted to look, which I believe my wife does, as she turns toward me.
"I'll bet you do," she smirks. "Oh I have an idea!" she says suddenly. "Callie, you need to wear my coral necklace with that. It would look amazing against your skin. Babe go into my dresser and see if you can find it."
My heart almost stops. Suddenly this has all shifted to me and now I'm the one being put on the spot.
"Me?" I offer weakly. "Well I don't have any clothes on either."
"Well why should you be exempt from this lesson? We can't ask Callie to do something out of her comfort zone and not be willing to do the same thing, right? Now go ahead and find my necklace. We're waiting."
I gulp. This is the moment of truth. I pull back the sheet and try to get out of bed gracefully, but it feels like time has stood still and like there are a thousand eyes on me – me and my and huge erection, which is now pointing out in front of me and curving upwards... almost like it's reaching out for attention and saying Please! Please touch me!
The room is silent for a moment as I walk past Callie, who is wide eyed, and I head toward the dresser. I hear some snickering from her as I pass.
"Well, I guess someone is enjoying the show,” my wife sarcastically chimes in.
I fumble near the dresser for a minute looking for the necklace, very aware of my nakedness.
I finally find it and bring it back towards Callie, my dick swinging and bouncing obscenely out in the open as I walk. I offer the necklace to her.
"Don't just hand it to her." my wife interjects. "Treat her like a proper lady and put it around her neck. Turn towards the mirror so you can see what you're doing."
We turn and look in the mirror. The scene is crazy. There is my step daughter, standing in a sexy bikini, and her step father, towering over her, naked and horny,
I move very close to and behind Callie so I can drape the coral necklace around her neck. As I do so, my dick rubs against her butt and the side of her hip. It is dripping precum and a streak of it gets on to her skin. I could almost come just from the stimulation.
I look in the mirror as I clasp the necklace around her beautiful body. Her chest heaving and breasts sticking out.
Callie is not looking in the mirror though. She's looking down directly at my cock.
Time slows again and finally I hear Callie speak.
"Mom, can I touch it?"
We turn and look towards her mom.
She has thrown the covers off, has her knees up, and is playing with her wide open pussy...
