Joe Jonas and Demi Lovato ‘Have Date Night and Sleepover’

IT looks like things are hotting up between teen stars Joe Jonas and Demi Lovato!

Despite previously denying rumors they’re a couple, the Camp Rock costars enjoyed a date night and sleepover during Halloween.

Joe and Demi apparently stocked up on scary flicks (including Saw, Friday the 13th and the Halloween series) and watched them at Lovato’s Toluca Lake, Calif., home.

“They snuggled on the couch during the whole thing and stayed up most of the night,” a source told American tabloid the National Enquirer, adding that when the films were over, Joe, 20, retired to his own guest room.

“Still, Demi’s dad kept checking to make sure he stayed out of her room. Joe’s a good kid, but boys are boys!”