Bx. ‘Nightmare’ perv

A CREEP wearing a “Nightmare Before Christmas” T-shirt exposed himself to two young girls on a Bronx street while asking for directions to McDonald’s, police said.

The sicko got out of a light-colored Subaru on E. Tremont Ave. near Barkley Ave. in Schuylerville and approached the girls, who are 7 and 12, about 4:10 p.m. on Wednesday.

His fly was open and his privates were out.

Investigators on Saturday released surveillance video of the sicko in the hopes that someone recognizes him.