Tran dumped the Loyal hitmaker after four years of dating on and off earlier this month (Mar15) after reports emerged suggesting he had fathered a baby girl with his friend Nia Guzman.

The newly-single model has since escaped to Cancun in Mexico for a girls' holiday with best pal Christina Milian and she uploaded a number of saucy snaps on Instagram.com on Tuesday (17Mar15).

One image, in which Tran is featured exposing her butt in a string bikini as she cheekily sticks out her tongue, is captioned, "I'm president of the Itty Bitty Committee", referring to her revealing swimsuit.

The photo clearly caught Brown's eye and he left a comment on the picture, suggesting she risked coming across as desperate by showing off her curves online.

In the public comments section of the shot, he wrote, "Continue to be a lady beautiful...U (sic) are perfect..."

He then added, "Don't let the Thot (sic) form from anger", using the slang term for the phrase "that ho over there (thot)".

Tran has yet to respond to Brown's words of advice.

Meanwhile, the model is set to open up about the former couple's troubled relationship in a candid chat with U.S. TV personality Iyanla Vanzant, which will air on the Oprah Winfrey Network (OWN) later this month (Mar15).

According to TMZ.com, the interview was halted after Tran objected to Vanzant's line of questioning as she confronted the model about her reasons for dating Brown, despite his conviction for beating up ex-girlfriend Rihanna and his other alleged indiscretions during their rocky relationship.