Jennifer Lopez's ex is addressing claims that he hooked up with a transgender model.

Yesterday, June 8, British tabloid The Sun published an interview with transgender model Xristina Marie, who claims to have hooked up and exchanged racy photos with Casper Smart, 28, several weeks before his split from J. Lo was announced.

Of their encounters, Xristina Marie claimed, "'I said: 'You know what kind of girl I am?' And he said: 'I'm not stupid. My name is Smart,'" she recalled, revealing that they allegedly hooked up twice, the second time in his car in L.A., doing "everything you can do while driving." (Quotes via The Daily Mail).

However, Smart is vehemently denying these claims, saying:

"There is no truth to any meeting or physical encounter," he tells Us Weekly. "I am weighing my options on the appropriate action to take against Xristina Marie and/or The Sun."

Before Xristina Marie's confession, Smart was also rumored to be exchanging promiscuous photos with a different transgender model, Sofie Vissa.

Lopez, 44, and Smart were together for two-and-a-half years before calling it quits. According to the sources at the Daily Mail, though their split was just made public last week, the couple actually ended their relationship two months ago and Smart hooked up with the models while single.

According to Us Weekly, his split with Jennifer Lopez was "amicable."