Jennifer Lopez's ex-boyfriend reportedly ''fooled around'' with a transgender model in his car weeks before their split was revealed.

The 'Luh Ya Papi' singer, 44, and dancer Casper Smart ended their romance recently after two and a half years together and Casper is said to have had a steamy session with Xristina Marie, after being accused of cheating on J-Lo with another transsexual.

Xristina, 25, told The Sun on Sunday newspaper she had two meetings with the 27 year old after he flirted with her in a nightclub in Miami, Florida.

She said: ''I was in a club and Casper was smiling and being flirty.

''Everyone in Miami knows who I am. I think someone would have told him [I'm transgender].

''Then a few days after that I got a friend request from him on Instagram.

''He started messaging me. We started talking and he met me in his car and we went for a little ride around Miami.

''I said: 'You know what kind of girl I am?' And he said: 'I'm not stupid. My name is Smart'.

''We started fooling around in the car and being touchy. We had a kiss and did a little more.''

The brunette beauty claims he also begged her to send him sexy photographs and when she sent him one of her in a thong, he replied: ''Not good enuff,'' before asking her to strip for him during a video chat.

Xristina also sent him a snap of her bottom and the pair met again for a sexy session in his car in Los Angeles.

She said: ''We played around -- a little more than the first time. We grabbed each other and we touched. We did everything you can do while driving.''

Talking about her transformation, Xristina said: ''I've had three nose jobs, my Adam's apple done and my breasts done four times.''

Casper has also been accused of exchanging messages and sexy photos with transsexual Sofie Vissa, 23, who claims the snaps ''showed everything.''

Those close to J-Lo, who has six-year-old twins Max and Emme with ex-husband Marc Anthony, said she and Casper split about two months ago and his meetings with models were ''as a single guy.''