Thin walls?

I have a thin wall between my vagina and my ass. Meaning if you had a finger in both you could touch fingers together and feel it. Which sucks because when I have to poop, you can feel it like let's say if I'm being fingered. So I always get super nervous and try to eat at certain times of the day so this doesn't happen. Well, I don't poop at my guys house and I want to have sex. It's too late to leave and I just don't know what to do. So annoying. What would y'all do?