wow-sers! … what a headline! … LOL!

Fergie is openly bisexual, but she learned pretty quickly that there’s no loophole when it comes to infidelity.

HOTT GOSSIP!

How is it cheating if you’re having double the fun with one sex partner at a a time?

FERGIE has stood by her man Josh Duhamel as rumors that he cheated on her with a stripper are blowing up, but apparently being faithful doesn’t come easy for her, either. The singer has openly admitted to being bisexual and says she had to learn she couldn’t have extra-marital affairs with either men OR women.

As reported by PopEater, she said: “I’ve been very honest with him from the get-go. I think women are beautiful, I’ve had a lot of fun with women, and I’m not ashamed of it. The problem is that I also love a well-endowed man. But just because I enjoy women doesn’t mean I’m allowed to have affairs in my relationship. I learned through talking with my therapist that it is still cheating even if it’s with girls, so there is a rule there.”

Despite her urges, Fergie has ruled out ever having a threesome. She added to Advocate magazine: “No, that’s not happening. We’re too smart for that. We’ve done some filming but with no tape in the camera.”

The couple’s marriage was recently rocked by allegations the Transformers star had cheated on his wife with a stripper. However, both Fergie and Josh, who married in January, have branded the claims of infidelity as “ridiculous” and have since put on a show of togetherness.