Cramped Sex

"You know you want to big brother," she teases, rubbing her butt against your cock; her voice is echoing out of the crevice of pipes she is stuck in.

You do, and she knows it. Grabbing hold of her womanly hips, you push her forward, further into the inner workings; her upper body is now completely obscured by the bowels of the shuttle.

"You seem a bit stuck," you tease back.

"Yeah, I hope no one takes advantage of me," she says, tossing it back.

You push down her panties, letting them rest around her thighs, unable to take them off any further. You reach down, feeling her slit; you run your hand along its folds. You stop at the bottom of the run and tease her clit; then go back up.

"Oh," she moans.

You repeat the maneuver, doing it over and over again. You feel Rachel getting closer, slowly you insert a finger, then another, and then one more. You let one finger remain outside, teasing at her clit. You feel her getting closer; you speed up your fingering of her cunt.

"Yes, yes," she repeats, over and over as she gets closer to completion.

Eventually she orgasms, she cums on your hand and collapses onto the floor. You remove your hand from the limp woman; you open your underwear letting your now stiff cock spring forth. You then wrap your arm around the loose woman's waist. You pick up her backside, bringing it to your waiting member. Her back arcs downwards and she even has those little ass dimples, the sight looking like the disembodied bottom half of some sex doll.

You hear her catching her breath; she does not anticipate what is coming. You push your massive cock into her, at first she is breathless, only letting out a gasp.

"...Fuck me," she begs, after finally catching her voice.

"With pleasure," you say, pushing deeper and deeper; her soaked passage practically guiding you in.

Rachel is moaning, continuously, as you push deeper and deeper into her tense passage.

Soon you feel your heavy balls touch her privates, as you bottom out. The conduit on your back slides down, moving to your lower back.Rachel has been moaning non-stop as you pushed in, yet now that you've finally stopped she starts to catch her breath.

"Ye--" she says, cut short by you pulling out at slamming back into her.

"FUCK me," she yells as you enter all the way, again.

You smile, pushing in and out you slowly exit then slam back into her. You do this again, then again, and then some more. You continue this, Rachel becomes more and more like a ragdoll, you hold her up around your arm; letting you do whatever you want.

"Do you like that?" you ask, slowly withdrawing.

"Yes, fuck me big broth--" you cut her off again; slamming back into her.

"YES," she screams, her voice muffled by the tight quarters she is stuck in.

You begin to pick up the pace, speeding up on retreat. The conduit now falls down, yet again and now annoyingly pokes you in the butt every time you almost exit her; However, you begin to ignore it enjoying your sister's tight vagina. She begins to become incoherent, only able to moan loudly. She is getting close to another orgasm; you feel yourself also getting closer to your own.

You feel her begin to shudder, you legs spasming into your side; she climaxes yet again. You slam yourself down into her cunt, your cock releasing your pent-up cum into her; over and over again.