Illegal Penpal

The act of sticking both your pointer fingers in your partners vagina and butthole touching the wall inbetween

Me: My girl let me hit the illegal penpal last night
Friend: Dude that’s fucking gross

Illegal penpals

Sticking your fingers in your partner’s vagina and butthole and rub the wall inbetween making your fingers not able to touch

Me: Hey honey wanna do illegal penpals tonight?
Her: No my wall is sore