Cyrus and Patrick, both 21, spent several hours together at the latter's residence in Los Angeles, reported Daily Mirror.
The 'Wrecking Ball' singer was dressed in a black long-sleeved shirt that had Mickey Mouse on the front. She paired it with denim shorts and black tights.
Patrick was seen wearing a grey sweatshirt and dark coloured sweat pants. He appeared to be sporting a scruffy beard and moustache.
Cyrus was spotted leaving the suite with a grin on her face as Patrick followed behind her drinking a bottle of water.