Open Question: Ehlers-Danlos Questions?

I'm dating a guy with Ehlers-Danlos and i just wanted to know what i should be prepared for "down there". If you have this skin condition is it likely that you weren't circumsized as a baby? I know his skin is stretch EVERYWHERE, I also was wondering since his bruises so easily if he cant get hickeys, or f i were to give him one if it would stay permanetly? Anyother information would be helpful. I'm just trying to learn as much as i can on his skin condition so i can be well educated on it.