On Saturday night, Mariah Carey brought a very pregnant Blac Chyna on stage at her Las Vegas show and treated her to a lap dance. Not a lap dance from Mimi, because come on, but a lap dance from one of Carey's sexy boy toys back up dancers.

Blac Chyna (real name Angela Renee White) is, of course, pregnant with Rob Kardashian's baby, due this fall. This is their first child together, but Chyna is already the mom to 3-year-old King Cairo, her son with Kylie Jenner's ex-but-maybe-back-together-again-boyfriend Tyga.