Who's been flashing their bum on Instagram this time?

Late last night we saw this saucy snap pop up on our Instagram feed, and sure enough we'd know that bum anywhere: it's former Attitude cover star Austin Armacost. The former CBB star clearly has no trouble showing off to his thousands of followers, who appreciated it with considerable thirst. He also presented the 'booty' shot on his Twitter page.

Check your mirrors

A photo posted by austinarmacost (@austinarmacost) on Apr 28, 2016 at 11:12am PDT

Earlier in the week, the model and gay rights activist also showed the front half, for anyone still unsure of what that looks like.

A photo posted by austinarmacost (@austinarmacost) on Apr 19, 2016 at 9:00am PDT

Austin is the new face (and bum) of aussieBum and Prowler underwear, and he's recently shared some new images from that campaign too.

@aussiebum_team @prowleruk #TeamAustin

A photo posted by austinarmacost (@austinarmacost) on Apr 26, 2016 at 10:18am PDT

More stories: Pics: Austin Armacost strips off as the new face of aussieBum and Prowler Go behind the scenes of Ben Hardy's Attitude cover shoot