So there i was, sound asleep in my bedroom. I was visiting my dad (my parents were divorced) and he had since remarried a woman with 3 adopted Thai daughters. 2 of them are twins. I feel someone pull the covers to the side and slide in. I could tell right away by her body-shape and feel it was the twin i wasn't already fucking. I don't know if they are identical or fraternal twins, but she didn't feel like the older non-twin sister either. Yes, i was fucking her, too. I scooted over to make room for her, then rolled on top of her and began kissing her. Ah, yes, Ariane, the slightly smaller, thinner twin. She was inexperienced at kissing, and so we made out tentatively, slowly at first, then exploring each others mouths with our tongues. She felt so different than either of her sisters, tight, taut and firm with pointy little tits with pointy pencil-eraser nipples poking my chest. She smelled right out of the shower, smelled of soap, moisturizer and shampoo.
I'm on top of her with my hard cock poking out of the fly of my boxers rubbing against her pantie covered pussy and smooth thighs. She's only wearing panties, having taken off her robe and dropped it on the floor. I looked down and she looked so fucking sexy, the moonlight streaming in the window, her dark hair shining in a halo around her head on my pillow, those pointy tits jutting up, hard nipples begging to be sucked and licked...
I took my tongue out of her mouth and began sucking on her erect nipples, taking each one in my mouth in turn, sucking and licking them while sliding my hand down her flat belly to hook my finger around the elastic of her underwear, sliding them down her thighs and legs. She lifted her ass so I could take them off, lifted her legs so i could slide them down and off.
She spread her legs for me, I was in between them. I straddled her in the push-up position, the horny little bitch reached down and guided me into her wet, tight, VIRGIN pussy! She was a girl on a mission: to lose her V-Card. I pushed against her pussy, met a lot of resistance getting the head in (I've been told I have a big head LOL), then she adjusted her hips, put her calves over my shoulders, pushed against me and then I slid right into her VIRGIN TERRITORY! Going where no man had gone before! And the thing of it is, she and I didn't even really get along...I didn't (and still don't) particularly care for her and she for me. But hey, whatever. I'm not gonna kick a hot horny Thai girl out of my bed, even if she is my step-sister.
I began with small, short strokes, building up to longer, deeper ones. She began sighing and moaning, I had to tell her to KEEP IT DOWN or else our parents would hear. I was concerned about that but not too concerned, as their bedroom was downstairs and on the other side of the house but still.
I shot my load in her after a few minutes. I couldn't help it, she was soooo tight. I kept my cock in her it felt sooo good, then it made a POP when i pulled out. After catching my breath, i rolled on my back and positioned her on top. I had to show her how to ride me as she had never been fucked before that night.She was kinda clumsy at it, so i then pushed her off me and positioned her on her hands and knees on the bed with her ass hanging over the edge in the air. Fuck goddamn she looked so fucking hot like that, face down, ass up. I stood behind her, my hard cock grazing her tiny butt cheeks, seeking to ravage that warm wet place again. I slid into her a little easier this time, as she had already been penetrated and my previous cum-load oozing out of her acted as a lubricant. Mmmm, fuck she was hella tight, me gripping her hips and grinding my cock into her. She did that thing that inexperienced girls do which is arch their back the wrong way. I had to position her the way i wanted to before really getting down. I stroked my cock in and out slowly as she was sooo tight i didn't wanna come so soon like the first time. Then as she relaxed and started getting into it she began making those small sounds and sighs and began pushing back against me. She lifted her face off the mattress and tilted her head up while panting and breathing hard. i grabbed a handfull of her long black hair and really began to fuck her, hard. I had to remember to not slap her ass or bang that pussy hard enough to make a soul-clap, or our parents would hear and wake up. so i gave her a reach-around.
Damn! She jolted like a skittish colt and began to flail around and crawl around the bed when i stroked her clit while my cock was sliding in and out of her. i could tell she was gonna make a lot of noise, so i pushed her face into the pillow while her legs shook and she bit the pillow and grunted out an orgasm. She came and stayed in that position (face to the side on the mattress, ass in the air) while i drained my balls for the second time into her tight little Asian pussy.

We still get together sometimes. Still don't care for her too much, though.