Nobody who has a bubble butt has to tell you he has a bubble butt. He just does. And it's a beautiful thing. Anthropologists may say people are drawn to bubble butts due to the mating power contained within. Pump. Pump. Pump. Waaaah!
Homosexual anthropologists are too busy having sex with each other while wearing tweed jackets with suede elbow patches (and nothing else) to have a specific theory about homo guys and bubble butt attraction. So I'll say it has something to do with curves. Curves are lovely. I mean strong. I mean lovely and strong. Enjoy this bubble butt moment. That jockstrap sure is.
So what's the inside of a bubble butt called? Let's say bubble hole.