Mario Falcone has slept with "over 500" women.
The 'Only Way is Essex' hunk - who is currently in a relationship with co-star Lucy Mecklenburgh - claims he has been involved with a large number of ladies but believes it was acceptable because he was single at the time.
Asked how many women he has been with, he said: "Over 500. People might frown on it, but I was a single young man, so I think it's acceptable. If one of my mates told me he'd only slept with six girls, I'd be like, 'What? You've clearly been in a relationship too long!' "
He admits his naughty behaviour was mostly down to previous relationship break-ups, which led him to go "mental".
Mario told Now magazine: "I was 15 years old when I lost my virginity. I've had two serious girlfriends - I was with them both for two years. But when we broke up, I'd go absolutely mental and make the most of being single. My most was during two weeks away in Malia - I slept with 23 girls!
"The best I've ever done was five in one night. But that was all individually."
However, he claims he would never be unfaithful to his girlfriend, with whom he split in the last series of 'TOWIE' when she discovered he had been messaging other girls.
He added: "Am I faithful to Lucy? 100 per cent. I wouldn't even look at another girl now."