English R&B singer [artist id="1916698"]Estelle[/artist] shares a very personal milestone in her life on this week's episode of MTV's "When I Was 17," airing Saturday at 11a.m. ET/PT: She recalls losing her virginity, and it wasn't exactly what she hoped for.

"I didn't have a boyfriend, per se," she says in the episode, which also features Mike Posner and AnnaLynne McCord. "I definitely fancied a few guys. There was one particular guy that I fancied. He was cute, he was short, he had a gold tooth."

Like all good friends, Estelle's mates blabbed to him. "My friends told him I fancied him, and then he knew where I lived, and he would just start hanging out outside my house," the "American Boy" singer recalls. "So this guy was, like, my first full-out crush, all that good stuff."

Maybe she didn't like his baggy jeans, but she was about to find out what's underneath them. "Eventually, I lost my V-card. Looking back, it was nothing like I thought it would be. It was horrible."

Needless to say, Estelle and her mystery man didn't have a fairy-tale ending. "We actually got along as friends, and then we did it and it was ... ehh. And then we split up.

"In hindsight I should have waited," she added.

"When I Was 17" -- this week featuring Estelle, Mike Posner and AnnaLynne McCord -- airs on Saturday at 11a.m ET/PT on MTV.