Ireland Baldwin's gone nude!

Alec Baldwin and Kim Basinger’s 20-year-old daughter took it all off for Treats magazine -- and it was quite a treat! The blonde showed off more than her tattoos when she posed in the buff for the mag.

For the spread, the model posed in a variety of scenes and was outfitted in glittering cuffs and collars and mesh shirts.

Erin go bra-less!

Interestingly enough, Ireland is following in her mother’s scantily clad footsteps. Kim did her first photo shoot for Playboy when she was 29 years old.