Lady Gaga back with ex boyfriend Luc Carl?

July 09, 2010 - New York, New York, U.S. - LADY GAGA performing on NBC's ''Today'' Show Toyota Concert Series at Rockefeller Plaza in New York City on 07-09-2010.  2010..K65600HMC. © Red Carpet Pictures

Anyone watching Lady Gaga with her ex-boyfriend Luc Carl in a swimming pool in Texas could be forgiven for thinking the singer had given him a second chance…

Gaga kissed the New York barman on the lips as they splashed about in the water at the St Regis Hotel in Houston.

The pair, who dated five years ago, are said to have been secretly meeting in celeb-free haunts over the past few weeks but Lady Gaga’s camp is remaining tight-lipped over the affair.

Witnesses said they saw Lady Gaga wearing an animal print bikini jumping on her beau’s shoulders and having a play fight with another couple.

Gaga also proved her kookiness isn’t a total act as the singer opted for a hot pot of tea at the side at the pool while her mates enjoyed colourful cocktails.