Bella Thorne's not one for laying low and hiding out ... and that also goes for her nipples.
The actress left the Peppermint Club in Weho Friday night in a sheer top with no bra ... complemented by a pair of track pants. She also had her nipple piercings ... as everyone can see.
The 19-year-old's been hanging with her ex, Gregg Sulkin, lately ... but no sign of him at the club. Just Bella and her girls ... and some gal pals too.