Published Tuesday, 25 September 2012
The former N-Dubz star reveals in her new autobiography, Honest: My Story So Far, that her first sexual experience was with a man she names only as Jono who supplied her with marijuana.
In the book, serialised in The Sun newspaper, she writes: "I'd progressed from alcohol to weed, and Jono was the dealer who supplied me. I started hanging out with him, sitting in his car, talking and sometimes kissing. In the end I became quite obsessed with him, although I wouldn't describe it as love.
"After about eight months, Jono drove me to a little bed and breakfast hotel... before I knew it we were alone in a room. I just went with it, knowing that I was about to lose my virginity, and knowing what a big deal that was."
Contostavlos admits she regretted the experience and wishes she had waited to have sex with her on-off boyfriend Fazer, who became her bandmate in N-Dubz.
She adds: "All the time I was on and off with Fazer, he really wanted us to have sex, but he was a gentleman about it. And now I'd given myself to someone else. I very much regret this now, and I wish that Fazer had been my first, but it wasn't to be."
The singer eventually dated Fazer officially, but they split in January.