I made my friend cum by just focusing on his frenulum

Yesterday I made my friend cum without sex or a proper blowjob

So I have an older co worker friend who I go with to the gym often to train. We have had an on and off thing for a while now me and him. Anyways yesterday we finished a work out session and while we were doing our usual posing for post workout gym pictures I noticed in the mirror he had a little chubby in his shorts. I went up and pulled his shorts down, mostly fooling and teasing like we usually do, but today he didn't have his undies. I started laughing and got up close but today he smelled really bad. When I peeled his skin back I could tell he hadn't showered for a day or too and I looked up and he looked embarrassed

I decided that instead of having to put his stinky mushroom head in my whole mouth that I wills instead specifically just focus on that little flap of skin on the head called the “frenulum” uncut guys have

I told him my idea and he nervously agreed but I could tell he was mostly embarrassed cause of the smell and unappealing presentation. I let him get soft for a bit then pulled his skin back which quickly made him hard. I spent the next 30-40 minutes just licking, kissing, snuggling my nose against and sniffing, and just cleaning that frenulum area spotless

He'd make the funniest faces because it would feel really good but also a tease because he would want to feel it all around his penis. It took a little bit of time to build up, but when he finally came he was cumming like a fountain, he was almost screaming and he went weak at the knees. It was definitely one of the hardest orgasms he's ever had! Definitely going to experiment more with this and see if things like age effect the sensitivity of the little string haha