A guy who met Britney while she was on vacation in June tells In Touch that he made a video of them having sex and that the tape might become public.

The 28-year-old man, who was living on Hawaiis Big Island at the time, says he left his camera rolling without Britneys knowledge as they did the sucky f**ky at a bungalow at the Four Seasons hotel on the Kona-Kohala Coast on June 7th.

So far, the only thing, he claims, holding him back from releasing the video is that he was so disappointed by his own performance, he is embarrassed to let the rest of the world see it!

He tells In Touch he met the mother of two in the bar at 1 a.m. and they ended up partying together in Brits room before hooking up. It was just normal sex, we didnt do anything crazy, he says. It was a little disappointing. It lasted for about 25 minutes and then we passed out.