WORLDWIDE VIDEO EXCLUSIVE: Octo-Mom: Donor Daddy Was Last Man I Had Sex With

"This is as painful as pulling teeth. Literally."

With those telling words, Octo-Mom Nadya Suleman makes a bombshell revelation about the man who fathered her 14 children, in an exclusive new interview, only with RadarOnline.com.

Suleman says --despite  previous statements that she and the donor daddy were merely "platonic friends"  --  they did have a sexual relationship and that he was the last man she was intimate with -- and that was ten years ago!  

"I've taken a vow of celibacy...practically for a decade."  Nadya told RadarOnline.com. "He was the last male I was intimate with."

Suleman --appearing to still have feelings for the man -- added: "Maybe that's slightly connected to my attachment. But as I said,  there's absolutely no expectations... I don't expect him to ever..." 

Expect him to what?  We don't know , because her voice getting softer, Nadya never completes her thought.

When RadarOnline.com suggested to Nadya that it appeared she was clinging onto hope regarding her relationship with the father, she interrupted us and said "No.. for my children. They deserve to know where they came from. Don't make it seem like I'm looking for him to be a significant other. No."

Nadya also told us empathically that she will never reveal his identity or where he lives.

When we asked about his lack of involvement in the children's lives,  Nadya said: "He's confused. He probably doesn't know what to do..... He doesn't need this. This has nothing to do with him."

Watch our exclusive to our new interview with Octo-Mom!