I want to get my friend to wrestle me, but I'm worried to ask?

We've been buddies for 15 years and were good friends. Occionally we usually joke about who's stronger than who, but lately ive been getting this urged to submission wrestle with him. I do have wrestling mats in my basement and Im think we can wrestle down there. I was also hoping I could get him to wear a spandex wrestling singlet when we wrestle. How do you suppose I go about asking him this? Should I try to get him mad at in order for me to do this with him? Or do I just ASK?