He's not escaping that easily.

You wait for the sound of the shower as your dad takes your sister's advice and make yourself ready. You lube yourself up, playing with your tight little rosebud, slowly opening yourself. Satisfied that you've done enough preparation, you place the cockring around your own ring, pulling your pajama pants up to keep it in place. You sneak silently into your parent's room, and from there into your parent's bathroom. You crack the door open, peering through the steam at your dad. He's washing off the results from your play, and you see him frown slightly in confusion as he cleans the cum out from inside him.

Your mouth waters as you see his big, fat daddy cock swinging between his legs. You look at the shower wall and concentrate, and there, twitching slightly in anticipation, is your tight, pink asshole. It doesn't take long for your dad to notice it. He stops, mid rinse, and licks his lips. "Oh my god," you hear him mutter, his voice low and husky. He reaches out and with a thick, calloused finger, begins to play around your rim. You have to bite back a moan as he does. This is so fucking hot. You can't believe your dad is going to fuck your hole. He slowly begins to finger you. His fingers are so much bigger than your own, and your legs shake with pleasure as he stretches you out more than you already were. Finally, apparantly satisfied at the looseness and slickness of your pre-lubed asshole, he steps forward, cock hard.

You bite your lip to prevent a moan as he pressed the fat head of his cock against you. You wonder if he's going to tease you, but with a muffled curse, he slams the full, thick length of himself inside you. You almost come right there, sinking to your knees. He pulls out slowly, until only his cockhead is inside you, and slams forward again. You whimper softly as he hits your prostrate, stars in your vision. He groans himself at your silky tightness. "Ohhh, fuck," he moans, picking up his pace, "oh fuck, so much tighter than Rachel's pussy, so much tighter, oh fuck, ohhhh fuck."

You're nearly crying from trying to contain your own sounds of pleasure and from the roughness of your dad's fucking. He starts really going to town, slamming himself hard and fast into your abused ass, stretching your tiny asshole with his fat cock. You come much before he's finished, wetting the inside of your pajamas and bracing yourself against the bedroom wall in pure bliss. You go to take the ring off from your asshole, oversensitive now, but he picks up the speed yet again, grinding his pubes against your asshole with each thrust. The pleasure is too much, and you're paralyzed, barely able to keep from screaming.

"Gonna fill you up, gonna breed you, gonna fill-" his cock twitches and he slams himself into you a last time, his hot, thick seed filling you full of the same stuff you were made with. You shake with each pulse of hot seed.