J.Lo's BoyToy caught with another Tranny, again!

Jennifer Lopez's boyfriend Casper Smart is again being accused of stepping out on the American Idol judge.

On Monday newspapers published a report that the 27-year-old choreographer has been seeing transsexual model Xristina Marie behind the 44-year-old superstar's back. This comes exactly one week after a claim was made that Smart had been having a fling with transsexual bikini pinup Sofie Vissa.

Hours after the latest accusation, London reporters reported Lopez and Smart are on the brink of a split. 'The relationship is all but over,' a source told the site.

Casper has yet to deny this current allegation though he has said he's never been involved with Vissa.

'Jennifer has been embarrassed by him yet again,' a friend told the site. 'He was not invited to accompany her to New York.'

The beauty is holed up in her New York apartment where she's making plans to dump her boyfriend of nearly three years, Radar maintains.

'Casper was told he’s not going to Brazil for the World Cup,' the friend said of the soccer tournament that starts June 12 - Jennifer made the Cup’s official song, 'We Are One (Ole Ola)' with rapper Pitbull in May. 'Soccer is his favorite sport, so it must really suck for him.'

Smart did not appear to be with Lopez when she attended the Healthy Childhood launch event in New York on Sunday as he had work commitments in LA. Instead, the Jenny From The Block singer was with her sister Lynda.

Casper and Jennifer were last seen together on May 20 heading to Craig's restaurant in West Hollywood after she taped American Idol.

London newspapers broke the story of Casper Smart cheating on Jennifer Lopez with transsexual model Sofie Vissa last week. This week I discovered (thank you Dirty Army) a SECOND transsexual model by the name of Xristina Marie,' The Dirty's Nik Richie, who is married to former Bachelor star Shayne Lamas, wrote.

'Xristina Marie also had inappropriate relations with Casper Smart. According to our source the couple met in Miami and Casper Smart was 100% aware that Xristina is a transsexual.' Nik promised 'more details to come.'

Along with the post, there is a link to several messages between Xristina and a person who claims to be Casper.

After liking her photo, he asks for revealing snaps of her, adding, 'I need somethin good.' When she asks, 'But what am I getting back?' he replies, 'Surprise me.' He also reveals he is 'White and Mexican.'

One week ago an anonymous reader maintained her friend Sofie had been getting close to Lopez's partner.

'Nik, sooo my homegirl has been talking and linking up with Casper Smart for a week now… they met online and I guess they Both follow each other,' the person wrote.

'She texted me saying they exchanged pictures XXX’s… and what not… I’m liked shocked… didn’t know he was down for Us beautiful Transexual WOMEN.'

There were also screen grabs of their alleged messages where Casper told the beauty - who slightly resembles the My Love Don't Cost A Thing singer - 'I wanna see more what else ya got.'

The unidentified pal added: 'I myself didn’t believe it…. I’m like Casper Smart? JLo’s MAN!!!!!!!  Guess he likes beautiful women and the best of both worlds… crazy what a simple hello and simple talking and flirting can end up to….

'My girl said she seen him a few times and he picked her up in his big truck…. I didn’t believe it so I asked for screen-shot and here they are. I guess my friend Sofie is f***ing Casper Smart.. I’m asking for more screenshots she has them ALL.'

Richie - whose real name is Hooman Karamian - claimed that Vissa has naked images of Casper.

She allegedly took the photos on May 19 and is 'shopping them to the highest bidder,' according to Nik. No photos have since surfaced.

'I can confirm she has naked images of Casper Smart and Casper has nude images of (Vissa),' Richie has said.

'Someone must be posing as Casper, he is not a part of this thing with Sofie, it's absurd,' a source told MailOnline. 'There are no pictures of him.'

On Tuesday, Casper responded to Richie via Instagram.

Last week Jennifer Lopez' boyfriend Casper Smart was 'allegedly' caught exchanging direct messages with transsexual bikini model Sofie Vissa  !!

                             
This week another T-Girl comes forward claiming a hook-up with Casper…