Just months after his longtime girlfriend gave birth to twin girls, Sean "Diddy" Combs announced Tuesday that the pair have split up.

A publicist for the 37-year-old rap mogul confirmed that he and model Kim Porter were no longer together. On Dec. 21, Porter gave birth to daughters D'Lila Star and Jessie James; the couple also have a son together.

The move comes a few months after the two publicly proclaimed their love for one another in a cover story for Essence magazine, which detailed their turbulent history: They already had a son, Christian, when Combs began his high-profile romance with Jennifer Lopez. That romance ended in 2001.

In the December article, Porter said Combs simply fell for a "big booty and a smile" and she knew he would be back. Though she took him to court to increase her child support payments in 2002, Combs eventually reunited with her.

But while Combs told Essence he was an "ex-player," he admitted that he wasn't ready to marry Porter and even wondered, "Do you really think that God meant for a man to have just one wife?"

Though Combs said "this is the most monogamous I've ever been in my life," rumors persisted about other women -- so much so that actress and friend Sienna Miller recently took pains to deny that they were a couple.

He has another son, Justin, with ex-girlfriend Misa Hylton-Brim.