Oyasumi Sex

There is no bond stronger than the one between siblings. Yui has been the center of her brother's sexual desires ever since they were children. But in recent years, something in their relationship has changed. The divorce of their parents has forced Akira to pay more attention to Yui's well-being, take care of her on a daily basis, and assume the paternal role in their family. As the two grow older, Akira has taken notice of the physical changes in Yui—she is no longer the precious child he tho...