Your gf is round at yours and you forgot to buy toilet paper. She's just taken a huge steaming dump so what the fuck is she going to do now...hmmm?
The bathroom stinks and yet you have a boner.. surprise surprise haha.
The only option is for you YOU to be her toilet paper. Your tongue cleaning her filthy ass. That's right she's going to spread her dirty ass cheeks and rub her fat ass all over your face. You're going to clean her poopchute till it glistens like a good toilet freak bitch. Whilst you're tonguing her filthy ass and eating her filth you have permission to jerk off