My sister-in-law, Emma, my wife’s baby sister, visits as often as she can. Amy says she needs a break from her husband, the Reverend. He’s actually a deacon in their church, but he walks around with a stick up his ass, judging everyone all the time. I could only imagine what he says about us, but he’s the most overbearing, controlling man alive. He tells Emma what to wear, what jewelry to wear, and he insists that she never wear makeup. “I didn’t marry a harlot,” he’d always say. I’d felt bad for Emma ever since she married the jerk. There hasn’t been a time that I hadn’t wanted to punch the fucker in the face.

I overheard Emma tell Amy that she and her husband hadn’t been intimate for nearly a year. Apparently, he wanted to start a family, but Emma didn’t want her kids raised in such a strict household. She went to the doctor, who injected a birth-control pellet in her.

The Reverend was furious when he found out and accused her of all kinds of things, calling her a hussy. They haven’t had sex since. Emma laughed when she told us. “What, no more missionary marathons! A whopping three minutes of pumping if I’m lucky. No warm-up or anything; he shoved it in dry. It hurt so bad that I wanted to cut his dick off in his sleep.”

“Why do you stay?”

“He won’t give me a divorce. He says he’d drag it out for as long as he can, and I’ll end up with nothing. I don’t have any money, so I can’t afford a lawyer anyway.”

Amy is a whole different person when she’s here. We let her lounge the day away in her skivvies if she wants to. At least once during her visits, my wife, Amy, and I will spring for a spa day or a makeover to treat her the way she deserves. Afterward, the three of us will hit a fancy restaurant or dance club. On off nights, we’ll cuddle up on the sofa and watch movies that would be considered taboo for her back home. We let her choose what she wants to watch, but it usually ends up being Magic Mike or Roadhouse. Amy and I pretend not to notice when Emma’s hands disappear under the covers, but we know what she’s doing.

The last time she was here, she stumbled across In the Cut, with Meg Ryan. The blow-job scene really caught her attention. She stopped the movie and said she wanted a drink. She didn’t pause it--she stopped it, knowing that the video backs up about a minute or so when you hit play again. We watched the whole blow-job scene again.

Amy smiled up at me from my lap. “Do you want to rewind and watch that again?” she asked, deadpan.

Amy sat up, took the remote from Emma, and hit the playback button to loop the video. “That’s called a blow-job, sweetie.”

“I know what it’s called,” Emma snapped. “I just never…” She stopped mid-sentence. “I. Uh, maybe we should call it a night.”

Amy and I smiled at each other, knowing that Emma needed some alone time. It wouldn’t be the first time that Emma masturbated after watching a particular steamy movie. Amy and I had heard her sneak out to watch Roadhouse a couple of times.

Amy and I waited to see if the guestroom bed started squeaking like it usually did.

“Did you fix the springs?”

“And miss the fun of listening to her go after it. Not on your life. I still think we should put a basket of sex toys in there for her.”

“Stop. That’s my baby sister, and I don’t need to hear her using a buzzy toy.”

For whatever reason, there weren’t any squeaky bedsprings tonight. Amy drifted off to sleep, but I lay awake for about an hour listening to her snore. I was about to get up and take an Ambien when I heard the bathroom door close. Maybe she’d realized the bed squeaked too much, so she waited until we were asleep before going to the bathroom to diddle herself. Emma had been in there for a while.

I sat up in bed to listen. Soft muffled whimpers came from the hallway, and I knew she was masturbating. She sounded like Amy does when she’s struggling to achieve orgasm. I crept to the door to listen more closely, but a floorboard creaked, alerting her to my presence. The toilet flushed, then the sink ran. “All yours,” Emma said, opening the door.

“Go to the living room,” I said, closing our bedroom door.

“What? Why?”

I took her arm and led her out to the couch. “Bend over.”

“What?”

“I heard you say that you haven’t had sex in a year, so let me help. Now, bend over.”

“No! Amy’s my sister.”

“She’d want me to help you, too. Do you want me to wake her so that you can hear it for yourself?”

“Do we have to do it like this? Emma asked, reluctantly turning to bend over the arm of the couch.

“I didn’t think you liked missionary anymore. Or would you like to be on top so you can ride my cock?”

“Can we?” she asked softly, guiding me to sit on the sofa.

Emma knelt between my knees and fished my growing cock out of my pajama bottoms. She held it, watching in awe as it grew in her hand. She rubbed my cock across her lips, kissing its tip, before hesitantly taking it between her lips. She sucked on the helmet, swirling her tongue around its circumference. Her hand began to move up and down the length of my shaft as she sucked.  Emma giggled when her mouth made a pop as her lips slid off the head of my penis. She did it a few more times. I let her explore my cock as she pleased. She stroked, kissed, and sucked my cock at her leisure.

Amy’s face appeared from the hallway's darkness. I silently raised my hands as if to ask what I should do. Amy nodded, nonverbally giving me the go-ahead to be with her baby sister as Emma climbed onto my lap. I never expected that she’d stay and watch. But that’s exactly what she did.

Amy watched as her sister pulled her nightgown over her head, exposing her breasts to me. I watched Amy as she began to finger herself when Emma reached down to guide my cock into her vagina. Amy dug her fingers into her cunt as Emma sank onto my cock as if she were living out what we were doing.

Emma leaned forward, saying. “Please don’t tell Amy,” she said before kissing me. Our tongues danced in each other’s mouths in a long, lust-filled French kiss. When I opened my eyes, I noticed Amy was gone and wondered if seeing me kiss her little sister was too much for her. She appeared again a moment later, naked, holding one of her dildos.

I wasn’t sure if I should be acting like I was doing it out of compassion for Emma, or if I could actually enjoy fucking her. I could always ask for forgiveness if Amy didn’t approve. From the looks of it, Amy seemed to be enjoying what she was watching as I peered over Emma’s shoulder, so why shouldn’t I?

Don’t get me wrong. It’s not like I haven’t fantasized about Emma before. I have. She’s a younger, hotter version of my wife, with perkier tits and a tighter twat. I don’t know. Maybe the Reverend had a needle dick or something, but Emma was tighter than a virgin on prom night. Much tighter than I remember Amy ever being. Her pussy felt absolutely incredible as it glided over my shaft. Emma’s hips went into overdrive as she pivoted and rolled them, thrusting her cunt on my cock. “Suck my nipples,” she moaned.

I grabbed her tits and went back and forth, sucking on one nipple, then the other. I used my tongue to pin her nipple to my top teeth and pressed as hard as I could.  It definitely triggered her waterworks because she came only seconds later. “Harder. Bite it like this,” she whimpered as she bit her nipple. I clamped down on her other nipple, pulling it with my teeth like she was. Oh my god, the squeal of pleasure that emanated from her as she climaxed was ear-piercing. “Shh. You’ll wake Amy,” I said, watching Amy rapidly pound the dildo into her twat. She released her nipple, muttering that she was sorry.

Emma brought her feet onto the couch cushions. “I saw this in a movie,” she said as she started to pogo her pussy on my cock. She definitely didn’t see this on the big screen. The rapid-fire ride she was giving my cock was quickly pushing me to cum. I grabbed her hips and slammed my cock deep into her, and held her still until the urge went away. I knew I wouldn't last if she did that again. I pushed her toward the arm of the couch and told her to bend over.

She looked panicked when she asked. “You’re not thinking of sticking that in my ass, are you?”

“Doggie-style.”

“What?”

“You’ve never heard of doggy-style? Here, let me show you,” I said, turning her away from the hallway.

I got behind her and began to pump my cock into her from behind. I then reached one hand around her hip to rub her clit, while my other hand grabbed a handful of tit. She was humping against my strokes in no time at all. Every stroke slammed deep inside her, sending her again to orgasm.

I thought I was going crazy when I started hearing voices. It took me a second or two to realize that Emma was screaming into a throw pillow. “I’m cumming. I’m cumming. Oh, fuck yes. I’m cumming,” she cried as another gush of cum coated my cock. She was so wet that her juices literally flowed down the insides of her thighs.

It was time for the big finish, and I still wanted to show her that Missionary was so monotonous after all. I swatted her backside, telling her to get onto her back. I stood to block her view of the hallway so she wouldn’t see Amy standing there watching us with a dildo stuffed in her cunt. I didn’t know if we could explain that Amy sometimes liked to watch.

I grabbed Emma by the ankles and raised her legs above her head. In this position, I’d be able to drive my cock so deep that she’d feel it in her throat. I shoved my cock into her, hammering my tip against her cervix. I doubted she’d ever felt anything like this before.

Emma peered up at me with lust-filled eyes as she bit the corner of the pillow to keep from screaming in ecstasy as her climax raged within her.

“Can I cum inside of you, Emma?”

“God, Yes. Fill me up with it. Fill my cunt,” she growled like a woman exercising her demons.

I managed a few more long strokes before slamming my cock deep inside her, and pumping her full of my warm cum.

Emma rolled her hips on my shaft as we came in tandem. “I feel it.  I feel your cock twitching. I can feel you squirting in my pussy, filling me. Oh God,” she cried aloud.

“I’ll get a towel,” I told her as my cock shriveled out of her pussy.

“No need,” she said as she reached down to catch my cum from her dripping vagina.

I grinned over at Amy as Emma scooped my juices out of her vagina and sucked her fingers clean. She even leaned forward to lick the last drip that was hanging from the tip of my cock.

“Weren’t you coming to get an Ambien?” Emma asked as we got dressed.

“I think that we’ll both sleep like babies after this.”

I can’t speak for Emma, but I sure the fuck did.