Ewww

BRITNEY SPEARS' husband of just 55 hours, Jason Alexander, found himself another blonde to play with during a recent trip to Miami.

And his latest squeeze, named Ana, has something Britney doesn't have -- a male member!

"The moment Jason saw Ana, he went straight over and asked her to dance," said an eyewitness at Miami's Club Space on the night that Alexander, 22, met Ana. "They spent the next four hours dancing, kissing and drinking.

I don't think he knew he was kissing a guy. Mind you, he seemed pretty drunk."

"In Miami, Ana is well-known as a she-male -- a guy who looks like a girl but still has his male equipment," explains the source. "But most guys from out of town don't have a clue that Ana's a transsexual."

Just how far did their make-out session go? Ana was reluctant to kiss and tell: "I met the guy in the club, we had a few drinks, we danced, we kissed and that is as far as I'm going with this story," she/he purred to Star.

Ana's Web site says she charges up to $2,000 for a night as a she-male escort, and boasts,

"I'm better than anyone else when it comes to small waist... and that busty bleached blonde look with real 10-inch package."

Jason did not return Star 's call for comment but his father, Dennis Alexander, tells Star: "I wouldn't know about this. Sure, he was in Florida a few weeks ago. But I thought he was going to Disney World." Well, at least it was a magical ride.

-- NEIL BLINCOW