Wall Touch

In a double penetration scenario, when one penis feels the other penis through the wall between the butthole and the vagina

Bro 1: Yo, I had a devil's threesome last night, and my balls touched the other guy's balls. Is that gay?

Bro 2: Bro, everyone knows a wall touch leads to a ball touch, and ball touches are gay.

Bro 1: You're right, wall touches lead to ball touches.