Yes, let her fuck your sister.

You just nod. It's an eerily easy choice.

Stepping back to your sister, the she-demon's spaded tail swishes wickedly behind her. "Undress her fully. I do want to take my time." She declares, and you... actually obey. Your poor sibling whimpers as you pry-off the hospital gown from her gravid body, her breasts weighted and nipples inflamed for her pregnancy.

She's naked and the demoness gives you an encouraging pat on your ass while placing herself between your sister's thighs. "Good boy. You strip too." She next commands; as you awkwardly pry your bloodied clothes off and set aside your weapon, you watch ib morbid arousal as the demon nurse's flared equine cockhead presses up against your sister's abused, puffy cunt.

It is too late to stop the corruption, but she isn't wholly tainted yet. Your sister's eyes look into the demon woman's in confusion and hesitation, but... "Unnh- auuhnn~" She groans in throaty relief: she is in some pain, but your sister is also relishing the filthy sex just as you wish to.

For your amusement, the demon nurse's tail curls to swat her own ass. She shows you a pleased smile while she plows right where she was into your sister- and you feel an odd approval in her eyes while she looks fondly on your soon engorged, veiny, bobbing erection. At the same time her own phallus goes as far as it can into your sister.

Her purple, spade-tailed ass bucks and draws back, sawing herself in-and-out of your sister while you foolishly stand naked and erect. Your sister's toes curl, and the she-demon reaches out to grope and fondle your pregnant sister's bare breasts. Milk beads-up and then leaks from her nipples.

Suddenly- the demoness' heeled ankles spread a little wider, and she bends forward to bare her sweet ass at you. Broad asscheeks lull your eyes into the valley of her asscleavage, revealing to you a hot purple anus and the tempting vulva of a purple-lipped demon pussy.

Her head is turned to look at you, and not your pregnant sister. "Just put it in me, and be my ****. You won't care what it costs you." She confidently beckons... -and musky dollops glisten across her labia as if to invite you to your pleasant doom.