Finally got the Christmas gift I always wanted: my sister-in-law

The best part of Christmas since I married my wife has always been my sister-in-law. Every year we gather at their parents’ house, and I spend most of my time furtively shooting glances at Cristin, hoping to catch a glimpse of cleavage or even better, a brief upskirt shot. This year, as fate would have it, we sat crammed on the couch: two kids on the end, then me, Cristin, and my wife.

She’s always had a certain trashiness to her, but damn, is she sexy. Think Gal Gadot from the trailer park… dark sultry eyes, teasing mouth, and hips just begging to be grabbed from behind. As our thighs rubbed against each other for the better part of two hours, my cock must’ve started to get hard at least a half dozen times. We were uncomfortably close, but still… not close enough.

It was some relief then, when the presents were opened, and the kids and parents vacated the living room for some fresh air outside.

“You coming outside to watch Scotty play with his new drone thingy?” my wife asked.

Not exactly, I thought.

“Yeah, in a minute. I think I’m gonna make some coffee first,” I stalled. She nodded and went outside, leaving me and Cris still sitting side by side.

“You gonna move over so I can get up, or should I sit here and pee myself?” she said with a laugh.

For a split second I considered that very sexy image in my head – of her pissing in erotic release through the tight black pants she was wearing, all over her parent’s couch. My dick started to stand at attention yet again.

“You wouldn’t want that… would you?” she said a little softer now, her eyebrow slightly raised.

This was typical Cris, ever since the first time I’d met her. She was a master of the double entendre, the sexual innuendo. I don’t know how her husband never suspected what a flirtatious slut she was. Or, maybe he knew and didn’t care. Maybe he actually was as dumb as he looked. What the fuck did I care, anyway?

Every year at Thanksgiving and Christmas, and most other times I saw her, she was always dressed in something provocative. And, depending on the time of year, sometimes that “something” was hardly anything. Tonight was a fairly typical outfit for Cristin, though: skintight, black corduroy-like pants tucked into knee high, fuck-me boots with heels. For a top she was wearing a long, festive green sweater that hung down to her thighs, covering her ass, much to my chagrin. But even her baggy sweater couldn’t hide those gorgeous tits. I’d studied them from afar for years, and they were ingrained in my subconscious, trust me. Plus, her holiday sweaters were always low cut and appropriately sexy, so there wasn’t too much left for me to imagine anyway.

With a shake of her head, she put her hand on my knee and pushed herself up and away from the couch.

“I don’t know… maybe you would,” she said with an exaggerated sigh.

Then she lifted her arms high over her head and stretched towards the ceiling. Her sweater lifted up over her hips, revealing her absolute best attribute: a perfect, heart-shaped ass. And it was wiggling right in front of my face.

She put her hands on her hips and looked over her shoulder at me, then slowly crossed the living room and headed down the hall towards the bathroom. As she turned the corner, she again give me a look. Then she disappeared.

My mind began racing through the scenarios.

Did she want me to follow her? It sure seemed that way.

Was she just fucking with me? That option seemed just as likely, unfortunately.

I stood up quickly, still unsure what I was going to do, and realized my cock was noticeably hard in my pants. Rather than have a family member walk in and see me standing there with an erection, I walked down the hall towards the bathroom.

I turned the corner and saw that the door wasn’t shut all the way. In fact, it stood conspicuously open by several inches. I stood there listening. I didn’t hear any noise coming from inside.

Suddenly, and without thinking, I pushed it open. Cris stood there, hands still on hips, as if she was waiting for me. I just stared back at her.

“What, were you hoping to catch me in the act?” Her eyes twinkled.

“What do you mean?” I said, unconvincingly.

“Taking a piss. Isn’t that what you were hoping to see?”

“Isn’t that what you do in a bathroom?” I shot back, somewhat agitated.

I still couldn’t tell whether she was turned on, or just making a fool out of me.

“Well…. it’s ONE of the things you can do in a bathroom,” she trailed off, her finger twisting a brown curl of hair along the side of her face.

“Listen Cris, I’m not sure–”

“Close the door,” she interrupted.

I took a step inside the bathroom and shut the door behind me.

“Like this, you mean?”

We stood facing each other only feet apart. She glanced down at my dick, now very visibly hard.

“Is that a present… for me?”

“It sure is. Do you want to unwrap it?”

“Fuck yes, I do,” she said suddenly. And matter-of-factly.

“What about me, where’s my present?”

It was all I could do to restrain myself from spinning her around and bending her over the vanity.

Turns out I didn’t have to.

“It’s right here, don’t you like it?” She raised one arm over her head, the other on her waist like a Price Is Right model.

Then she turned around, put her hands on the counter and looked at me in the mirror. It was now or never.

I closed in behind her and put my hands under the front of her sweater. I grabbed her waist and ran my hands over her stomach, then her ribs. I felt for her tits – no bra! Of course not, I thought. Who wears a bra to family Christmas, right?

I began to grope her, roughly and shamelessly. They were heavy and even though they were large, they were natural. Hell, she was 15 years younger than me, probably 5-10 years away from a lift still. I grabbed at the front of her pants with my right hand while the left pinched her nipple, hard. She bit her lip and smiled at me in the mirror.

I unbuttoned her pants and slid down the zipper. She pressed her ass against my crotch and rubbed back and forth on my dick. I reached down and felt bare skin – no panties either!

I grinned and breathed in her ear, “You slut!”

She just nodded as I jammed my hand down her pants.

I felt the small patch of hair at the top of her cunt and kept going. I slipped a finger in and felt her wetness. Her breathing was becoming heavier, as was mine. She reached behind and fumbled with my belt.

“Keep going, Bryan…” she mumbled.

I withdrew my left hand from under her sweater and yanked open my jeans, sliding them down to my knees. Then I did the same with hers.

Her ass was every bit as gorgeous as I imagined.

As my dick slapped against the crack of her ass, I rubbed and pinched and grabbed like a 15-year-old virgin. My right hand had one finger in her pussy by now, sliding in and out and playing with her clit intermittently.

Cris pulled her sweater off and turned to look back at me. She grabbed my cock and ran her hand over it a few times, slowly stroking it.

“Put that fucking thing inside me,” she instructed. “Quick!”

She didn’t have to ask twice.

I bent my knees, directed the head of my cock towards her slit and slid in easily. The slurping sounds of her pussy pulling at my dick was like music from heaven.

I put both hands on her shoulders, and she lifted her head towards the ceiling. Her wavy brown hair extended down her back, almost to her waist. We rhythmically fucked for several minutes like that – slowly, intensely. Then, I started to pick up the pace, thrusting deeply and with more intention. Her tits began to bounce and I watched her pleasure – and mine – in the mirror.

Soon I was pounding her with force, grunting with every forward motion as her whimpers grew louder and louder. Within minutes, I was heading past the point of no return.

“I’m gonna cum, god, I’m gonna cum,” I said between thrusts. “Where do you want it?”

“In… my… pussy!… In….. side…. me!” she gasped.

“Are you… sure? ARE… YOU… SURE???” I said, as my wife hadn’t been on birth control for almost five years, and I had practically forgotten what it felt like to cum inside a woman.

“YES! OMYFUCKINGOD, CUM IN MY PUSSY PLEASSEEE!” she was almost shouting.

I grabbed Cris’ hair with one hand, the other still on her shoulder. With one last thrust, I lurched into her, sending shot after shot of hot cum inside her body. In a split second moment of clarity, I prayed she wasn’t trying to get pregnant. But I couldn’t help it now either way, and the thought disappeared from my mind as the last waves of orgasm and sperm left my body.

I stepped back, my cock sliding out of her and slapping against her thigh. My cum began to run down her leg.

Cris hung her head and rubbed her abused pussy, collecting the juice on two of her fingers. She turned and put them in my mouth, then hers.

“I love the holidays, don’t you?” she asked with a wry grin.

I looked at her beautiful breasts, her shaved pussy, and the juices pooling at her feet.

“It’s all about the spirit of giving, for sure.”

We’ve made sure to exchange presents every year since.

-END-

Source: reddit.com/r/Erotica/comments/zvw9jy/finally_got_the_christmas_gift_i_always_wanted_my