Used undies can be very erotic. Cris has people coming over and is annoyed that his stepson didn't clean his room. But instead of yelling at Jacob, he starts to realize how sexy his boy's undies are and gives them a sniff. The scent drives Cris crazy. He whips out his dick and strokes while smelling Jacob's shorts. Jacob comes into his room to find his stepdad on his bed with his cock out. Cris calls Jacob over and pulls his head down to his daddy's dick. Jacob sucks his cock, taking as much cock as he can until he got naked so Cris could get a taste. Jacob then gets his legs up so Cris could loosen up his hole before filling it with cock. Jacob takes every stroke from his daddy. He then rides on top, as daddy likes it. They fuck until Jacob shoots his load. Cris then straddles Jacob and cums on his boy's chest.