YES~!

"...okay." Mabel mutters out, taking the girls hand and dragging her back upstairs.

"I'm Tambry by the way." Said girl introduces herself while stripping out of her clothes.

"Mabel." Mabel says shortly as her sweater dress comes off and she stands bereft of any clothes for the first time since growing her cock.

"...Cute." Tambry mutters as she stares down at the shaft of flesh standing before her.

Mabel suddenly understands what Dipper meant when he said sometimes being called cute felt more like an insult. 'I'll have to fix that Rule later.' Mabel thinks before Tambry interrupts her thoughts and is shoving her tongue down Mabels throat as she grinds herself against the futa.

Feeling a growl rise in her throat, Mabel grabs Tambry by her shoulders and pinned the girl beneath her. As the two stare into each others eyes, the throbbing of Mabel's cock between them being the only movement for a time.

Finally, Mabel gives Tambry a quick kiss on the lips before burying her cock fully in the goths folds.