oh Hey Robert 👋👋🏿 @blacchyna

A video posted by ROBERT KARDASHIAN (@robkardashian) on


We wonder what he sees in her?!

Rob Kardashian and Blac Chyna are back together - for this week anyway! - and the former stripper is doing everything she can to make sure she's still got a tight grip on the sock designer, including twerking for him!

Kimmy K's little bro shared this Instagram of the video vixen shaking her booty in their front yard, and we just don't know what to say...

Chyna is clearly using Rob and their relationship to her advantage, and rumor has it she's set her sights on having another kid!

"She’s told friends she always wanted to have two Kardashian babies. She and Rob break up, move out, get back together and have amazing make-up sex. Chyna could easily be pregnant again already," a source dished to In Touch.

The K clan wants to put an end to the manipulation, too.

"They believe [Chyna] has been psychologically abusive to Rob. At first they thought she was a positive influence, but they now believe she is killing him," the source added.

Kris Jenner needs to step in, and quick!