08/09/2011 07:11 BST | Updated 08/11/2011 05:12 GMT

Simon Cowell Tells Radio Show He's 'Not Sure' If He's Engaged

PRESS ASSOCIATION -- Simon Cowell has sparked more speculation about his relationship with make-up artist Mezhgan Hussainy - by saying he's "not sure" if he's still engaged.

The star was speaking to US shock jock Howard Stern on the radio when he was quizzed about his love life.

When asked if he was engaged, the 51-year-old TV guru reportedly said he was "not sure".

The DJ asked him: "Why is the question 'are you engaged?' so painful to you?"

He said to the music mogul: "You seem embarrassed by the women you date, and I'll tell you why, they are lovely women, but yet you won't talk about about them.

"I'm a married man ... and if someone asks me a question about her I am proud to answer them, proud to admit I have a relationship with her."

Cowell replied: "If we were having this conversation off the radio I could have a normal conversation with you."

Cowell and make-up artist Hussainy have been together for almost two years.

According to reports, Simon told the show that he still loved his ex Terri Seymour, revealed that he had once had a threesome, and said he had a "bizarre kind of blind date" with a heavily pregnant Denise Richards.

A spokeswoman for Cowell told The Sun: "Simon was just making it clear that he doesn't discuss his relationships."