Futa-nomicon: Brother’s Corruption [Final]

A siblings are compelled to spend the end of the week together while mother and father go on a voyage. However regularly on one another’s nerves, everything changes when the more youthful sister, Gwen, incidentally tracks down an antiquated book that gives her strange sexual powers. She outfits her new capacities to change her sibling, Taylor, and gradually degenerate him into her play thing.

This game demo/prequel will show the beginning of Gwen turning into a futanari alongside debasing her more established sibling into turning into her femboi foot whore.