The two have known each other for a while, but according to Us Weekly the pair "are hooking up," a source revealed.
"She stayed over at his house in L.A. in early February,” an insider said.
The pair's sleepover allegedly took place just weeks after they caught up at Clive Davis' pre-Grammys party on Jan. 25. Previously, the duo was photographed together at the iHeartRadio Music Festival in September.
- Miley Cyrus' Mom Tish 'Spiraling' as Estrangement From Noah Grows After Claims She 'Stole' Husband Dominic Purcell From Daughter
- Family Turmoil: Miley Cyrus’ Mom Tish Accused of Stealing Husband Dominic Purcell From Her ‘Distraught’ Daughter Noah
- Dolly Parton Trying to Broker Peace Between Billy Ray and Miley Cyrus: Report
"They like to have a good time, they love to talk about art and music -- and they're both comfortable with nudity!" the source added.
According to the magazine report, they aren’t looking for a serious commitment, though.
"Jared doesn't do girlfriends," a pal said of the 42-year-old Oscar-nominated Dallas Buyers Club star.