Sex question

Walk away if you're a prudy Judy.

Anyways, my husband isn't circumcised, so of course he has that bit of skin that's attached to his head. I've been pretty dry this whole pregnancy, and even though we use lube, he will still get that bit of skin irritated or cut up when we have sex. We noticed it only happens when I ride him in reverse. Any other position, he's fine. We've gone days without having sex so his skin could heal, but if we do that position or even have sex frequently, his skin will get cut open or just irritated.

Has this happened to anybody else or anybody have any fixes? TIA.