SOURCE: TMZ

“Teen Mom 2″ star Leah Messer was brutally attacked by 3 women outside of a movie theater in West Virginia this weekend … multiple sources tell TMZ.

19-year-old Leah is telling friends and family … she had just left the theater with her fiance Sunday night when an older woman began following her and calling her names.

We’re told Leah insists she tried to tell the woman to leave her alone … when 2 other girls appeared out of nowhere and the three chicks opened a can of whoopass all over Leah’s face.

See more of this story and photos at TMZ