Blac Chyna treated fans to an impromptu photoshoot on Tuesday

The pregnant mum-of-one was clearly keen to show off her sexy side as she posed up a storm in a plunging black jumpsuit.

Rob Kardashian's fiancee flashed her ample cleavage in the revealing number which highlighted her famous curves.

Blac, 28, paired the jumpsuit with caged black sandals and a fierce head of red curls.

In another shot taken in the same location she also cuddled up to her little boy, King Cairo, as he clung onto his mummy's legs.

The star was showing off her growing bump

Blac, who is expecting her first child with KUWTK star Rob, didn't give any reason for the hot snaps, but we doubt her fans are complaining.

The star was glowing - and it's not hard to see why after it was reported she and Rob want to make a million dollars from selling the rights to their upcoming nuptials.

Getting read for her close up

Blac and Rob were signed for a docu-series about her pregnancy but now their wedding is also said to be part of the deal.

And according to TMZ the pair are now up for Kris Jenner handling the wedding plans - reportedly leaving poor Kylie Jenner furious.

“Kylie was beyond furious after she found out. She is really going through it right now over this whole situation,” a family insider told RadarOnline.