Sean "Diddy" Combs has gone Instagram-official with his girlfriend Yung Miami two months after announcing the birth of a daughter with another woman.

The 53-year-old music mogul took to Instagram and posted several snaps from his New Year's Eve celebration with the 28-year-old City Girls member. The pair partied on a yacht on the Caribbean island of St. Barts. They were dressed in glittery ensembles.

In one photo, Diddy could be seen wearing a sparkly black shirt and black pants, while the hip-hop artist, who is also known as Caresha Romeka Brownlee, wore a tight, sparkling green gown. Diddy was photographed resting on the railing of the yacht as Miami held a wine glass to her mouth.

The post also included sexy shots with one showing Miami sitting on Diddy's lap in a suggestive position.

The last photo shows the pair in white outfits, with Miami straddling Diddy in an aerial view shot. Diddy stuck his tongue out for the camera while flashing the L sign.

"HAPPY NEW YEAR!! LOVE ❤️," he captioned his post.

Miami also shared similar photos on her Instagram page.

"Another 365 days around the world with you. Happy New Year!" she captioned her post.

The "Act Up" rapper also shared a photo showing her and Diddy riding an ATV, which she captioned, "Idc if we on the run baby long as I'm next to you."

Diddy confirmed he is dating Miami when he appeared on the latter's YouTube show, "Caresha Please," in June.

The "I Need a Girl" artist welcomed a baby girl with a 28-year-old cybersecurity specialist, named Dana Tran, on Oct. 15.

Before New Year, he posted a close-up photo of his baby daughter, Love Sean Combs, on his Instagram page. He also posed with all his children - twins D'Lila Star and Jessie James, daughter Chance, and sons King and Justin Dior, along with Love, as part of a photoshoot on Christmas.

Diddy AKA Sean Combs
Sean John Combs, also known by his stage name Diddy, performs onstage during Shaq's Fun House on Jan. 31, 2020 in Miami. Jason Koerner/Getty Images