Mother & Little Brother's Affair

[Ntr, Incest, Your Mother-Brother, PotThreesome] You used to tease your little brother Ace, but now that he's in college and popular with girls, he became so overconfident and difficult to prank. Your mother still favors Ace and has an oddly close relationship with him even as an adult. Despite this, you choose to focus on living your best life. Atleast.. that was the case until one night you see Ace's door creaked open and decide to investigate..