..if you suck my dick you'll be thinking about it every time you put something in your mouth. Drop your pants or get slapped...' I heard a slight whim...er from Chris J. and strained to see what was happening. I some one spit and some one groan and some one go '...shhhhh...' Then I heard the unmistakably sound of flesh slapping against flesh and slight moaning and groaning. Then only a '...hhhnnnnkkk, hhhmnnnnkkkk, hhhhhnnnkkkk, hmhhhhhmmmmmmhh....' This went on for about fifteen minutes than I. “Ohhhh”, she whimpered. My lower hand found the inside of her thighs rubbing against both at once as they moved upward. “Nooooooo, don’t, don’t,” and she clamped her legs together tightly. I moved my mouth to her left nipple, licking her flesh as I went, then sucked on it as I had the right, drawing it into my mouth and snapping it, then lightly grazing it with my teeth. “Mmmmm”, her voice was muffled as she tried not to make a sound. I continued to play with her thighs, what had I to lose. If. I was aroused at watching my sister get fucked in fron of my eyes. I got my cock out and began to play with my cock. I heard Manu exclaim haan Arti, main jhar raha hoon, bhenchod zor se chod mera lund, sali kuttia, zor se hila apni gaand, mera lund jhar raha hai! (Yes Arti, I am cumming, fuck my cock hard fuck me you bitch, move your butt faster!) Manu let out a grunt and began to shoot his load, calling my sister a whore. Arti was still moving her ass on his cock when he slowed his movements. The ship started to roll even more violently. First she was almost standing on the inside of the hull, then the ship rolled the other way so she slid across the rough planking of the shelf until her arms and head fell off its inner edge, dangling while the restraining shackles cut into the top of her feet. Then the ship rolled back so once again her feet pressed against the side. She tried gripping the edge of the shelf to stop herself from being slid to and fro but found that she was.