You come to not long after...

You do not feel the same as before: you're insensate and nauseous, but your vision reopens and your senses revive to show you something compelling- a nice, perky ass descending onto your still rock-hard cock! You can feel your sister's soft pussylips and fuzzy pubes on your cockhead.

-wait, that's your sister...! -and your ballsack is still empty: a new horror colors your situation, and you are only distracted by watching her tender vaginal orifice struggle to try and drop onto your phallic glans. She's too tight, so her hips wobble and bounce trying to penetrate herself on you...

Her back is facing you, but her dark eyes look over one shoulder onto your dazed expression. "Not a word, not a sound. I don't want to be interrupted." She instructs- and then winces with a sharp break in her cold expression. A lurid wet sound is heard by you both-

-your cockhead has been popped into her vagina, destroying her hymen with a quick drop of her hips. She sinks further down slowly but surely to devour your dick in her hungry genitals, her slender body bouncing her hips above your ruined balls...

The stench of sex is thick in the air as the minutes roll on. You're so hard- and you try to warn her, but you're just too much of a mess to sat anything! Hot, thick ropes of your cum spray deep into your abusive sister's fertile, unprotected womb. You feel her vaginal canal clench and pull along your engorged penis, sucking away your sperm to her uterus.

-to your amazement, she rides you just like that for about half an hour. You're not sure how many times both of you came. She sinks to the hilt on your cock, and then turns her head to look on you with a devious smile; her hair has become a mess. "Admit it. That was worth your balls!" She exclaims expectantly...

But as much as you enjoyed that, you're scared- "You could get pregnant! That was a lot..." You sputter-on but she just squints at you and makes an unamused expression. "Your balls are gone, dear. That was raw sex- but safe sex." She explains to you while slowly pulling up off your dick-

-it flops out of her as a red-pink mess, like it's been getting sucked on in a vacuum cleaner! A mess of semen and thick vaginal secretions cling to your dick in a pungent slimy coating.

You watch her bare feet turn to face you, and she looks on her work with pride... "If you can still get it up, let's do this... once a day." She instructs, before flashing you a grin and redressing as you lie in a tormented yet satisfied heap upon the bathroom tile.