Farrah Abraham It's Nippy, But My Ass Still Got Wet!!!

3/6/2017 12:26 PM PST

Farrah Abraham's BOOB Got a Lotta Sun

Farrah Abraham was all smiles just hanging out poolside ... nip slip and all.

The "Teen Mom" star's left boob totally went rogue. Or maybe her swimsuit just fits poorly -- in the front, anyway. Seems to fit to a T in the back. 

She's gonna need way more sunscreen.