Megan Fox has only slept with two men.

The Transformers actress — who is regarded as one of the world’s sexiest women — insists she has only been intimate with long-term partner Brian Austin Green and her first boyfriend as she can only have sex with people she loves.

“I’ve only been with two men my entire life,” Megan told Britain’s Harper’s Bazaar magazine. “My childhood sweetheart and Brian. I can never have sex with someone that I don’t love, ever. The idea makes me sick. I’ve never even come close to having a one-night stand.”

Megan — who has previously claimed she is bisexual — insists she is nothing like her sex siren image and is happy living a quiet life with former Beverly Hills 90210 star Brian and his eight-year-old son, Kassius.

“I am a stepmother to the fullest extent,” added the 23-year-old. “I have looked after Kassius since he was three and he has no memory of life without me.

“For some reason, no one wants to look at me that way, but I am responsible for him and I’ve never struggled with that, from bedtime stories to the school run.”

Megan and Brian, 36, split briefly last year but soon rekindled their romance.