The Chris Brown, Rihanna, Karrueche Tran, triangle of sex and jealousy just keeps getting more wacky.

After the Rihanna Karreuche Tran Twitter Instagram butt battle, now Tran and Chris Brown are moving in together and Rihanna isn't speaking to the R&B singer, though she is canoodling with soccer star, Christiano Ronaldo. 

The UK's Sun reported last week that Karreuche Tran and Chris Brown have moved in together.

They said the 24-year-old Brown moved back in with his ex-girlfriend almost immediately after splitting with Rihanna.

The 25-year-old 100 lb model, Tran, has been involved with Brown before, but it seems to be getting serious after he broke up with his longtime flame, Rihanna, last month.

Despite Brown and Tran's supposed domestic bliss there is trouble on the horizon.

Chris Brown was recently in Vegas, living it up, and Tran is said to be upset after Chris dropped $20,000 at the club, Pink Elephant, this past weekend.

The R&B sensation reportedly bought a bottle of Moet ($1000 a bottle) for his entourage of 20.

Hollywood Life has a source that said "Chris Brown partied at Pink Elephant in NYC on Sunday night after Summer Jam, where he came in with an entourage of 20. This included his on again off again and now seemingly on again girlfriend Karrueche Tran.

"Brown took over an entire corner of the club and stood on a banquette dancing, for the whole club to see. He looked like he was on top of the world, but Karrueche didn't look as thrilled," the source continued.

It seems that Tran isn't the only lady who is upset with Chris Brown.

His former girlfriend Rihanna isn't speaking to him anymore, Hollywood Life reports.

A source told them that things between the former couple are, "Negative. They're long gone. Ain't nothing going on with them. He let that go. He had to. It was the right thing to do. It was time but he wants her to be cool and I'm sure she is."

The Butt battle between Tran and Rihanna from last week might not have even gotten Chris' eye because he never checks Rihanna's Instagram or Twitter accounts anymore, making a clean split from his embattled ex.

The same source said about Brown checking Rihanna's Instagram or Twitter timeline, "He doesn't have time. He living his life and it's hard enough for him to keep up with himself. He ain't got time to be chasing Rihanna. That's done anyway."

Here are some recent Karreuche Tran and Rihanna Instagram pics, which are a lot different than their butt battle in May.

Rihanna is busy with her "Diamonds World Tour"

But she's also found time to relax and party, as is her Rihanna style.

Except, we're not sure Chris Brown wants to talk with his ex Rihanna if she's hobnobbing with International soccer star, Christiano Ronaldo. She captioned this next photo from a week ago with: 

"Ladies eat your heart out!!!! #CristianoRonaldo came to get jiggy wit ya girl #diamondsworldtour #backstagelife #nobasiczone" 

Karreuche Tran, for her part, is just hanging out, when she's not kicking groupies off Chris Brown's tour bus in Vegas.