Breast friends: Blac Chyna and Amber Rose let it hang out

On Saturday, Blac Chyna and Amber Rose bared their busts at Harrah’s Pool After Dark party in Atlantic City.

Rose, 32, opted for a form-fitting white dress with thin, criss-cross threads keeping her décolletage in place. Chyna, 27, donned a low-cut crop top with matching white leggings and lace-up boots, while flaunting her massive engagement ring from fiancé Rob Kardshian.

Kardashian, 29, presented the model with a $750,000 IF & Co. rock last Tuesday after three months of dating. And while the couple have yet to set a date for the nuptials, Rose was one of the first to congratulate the pair on their exciting news.

“Congratulations to my Family @blacchyna and @robkardashian,” Rose wrote on Instagram. “Don’t let nothing or no one tear u guys apart! I never seen my sis so happy and I couldn’t be more happy for her! Sometimes we find love in the strangest places Lol God Bless you 2! Now let’s get this wedding together so y’all can start making some babies.”

In addition to wedding planning, Chyna and Kardashian are looking to expand their family as well.

“Rob, I am not playing with you, I want my eggs cracked!” Chyna shared on Snapchat. “That means I wanna have a baby! I need my name dropped. That means I wanna be married! I’m not f—king around with you!”

Chyna shares 3-year-old son King Cairo with her former fiancé, Tyga, who is currently dating Kardashian’s youngest sister, Kylie Jenner.