<human>: Can you give me the gist of the text in a nutshell?

This didn't happen today but a few years ago. 

I've always been kind of a daredevil or maybe just an idiot. A few years ago I was on vacation with my cousins, one of which happens to be one of my best friend. We're both males and we kind of like to joke around a lot and push barriers. We show each other our dicks and do helicopters. We make insensitive jokes, do stupid little challenges, and sometimes we pretend to be gay in public. Anyways... we happened to be bored and he had suggested if he could slap my ass with a hot curling iron. It took him about ten seconds to sell the idea to me. "I'll only do a split second slap." I laid down on the bed with my pants down and my ass out. He plugged in the curling iron and we waited for it to get super hot. I was getting kind of nervous and wanted to back out but this had to be done. I was no stranger to these kind of challenges (At a bonfire I let someone with a burning stick brand my nuts). The curling iron was hot and ready for my ass. Before I could tell him to go ahead and do it, he had already smacked it really quick. I felt a sort of pinch and it didn't really hurt as much as i thought it would.***Weak Stomach warning*** Flash forward 20 mins. I have a bump the size of a hand on my ass. Flash forward 3 days i have a quite severe burn that resulted in puss draining in unfathomable amounts. Flash forward months later, i have a permanent bump on my ass the size of a peanut that I assume is scar tissue. (I never went to the doctor because it didn't hurt). Flash forward now, I still have said scar tissue bump only now there's a skin boil that's huge covering my original bump and then some. It's super painful to sit down and when I do I have to lean on my other ass cheek. So that is my situation right now. I wanted to share this story because I'm going on vacation with same cousin to the same place haha. It's going to be a long painful car ride.
<bot>: Cousin burnt my ass a few years ago, recently got a boil that spread over my scar tissue. Super painful to sit down.