That sleepover occurred just weeks after the two were photographed catching up at Clive Davis' pre-Grammys bash on Jan. 25. According to a second source, the 21-year-old "Adore You" singer and the 42-year-old Oscar-nominated Dallas Buyers Club star have "known each other for a while."
Recently, though, their bond has deepened, a third insider says. "They like to have a good time, they love to talk about art and music -- and they're both comfortable with nudity!"
Not so much with commitment, though. "Jared doesn't do girlfriends," a pal