Wendy and Mabel were making out in their room. Due to some mushroom powder Dipper gave them, both girls felt intensely aroused. Wendy trailed kisses down Mabel’s body, sucking on her breasts and teasing her pussy, penetrating her with her tongue to get her wet. In the closet, Dipper hid silently, earring who his crush was fucking his twin sister, getting hard from the sounds. Although he hoped they wouldn’t notice, the noise gave him away.

Wendy entered the closet and knelt before Dipper’s to start sucking his dick. When she got it wet, she guided Mabel so she could learn how to give oral sex, using her tongue to give her twin brother pleasure. Dipper didn’t last long before cumming in her mouth, but Wendy wasn’t going to leave it like that. Feeling him still hard, she sat on his cock, starting to ride Dipper wildly, looking for him to hit her G-spot.

Mabel got on all fours so Dipper could fuck her too. Her brother didn’t hesitate for a moment before fucking Mabel’s virgin pussy, penetrating her hard until he came inside. The three of them had sex for hours until the effect of the fuck wore off, and immediately the Pines and Wendy decided it was best to erase their memories.