, 21, is moving on from her ex-boyfriend Justin Bieber
, 19. Now she's dating Union J
star George Shelley
, 20, and it looks like things are getting serious between them.
Last Wednesday (11 Sept.), Union J
opened up for her at one of her concerts in Portugal, and later on Selena hosted a party in her hotel room. George reportedly spent the whole night there, staying after the rest of the party guests went home.
"Selena and George were all over each other and things got very heated, one source from the party tells. "Everyone else left at 2 a.m. so they were able to spend the night together". Selena and George have been flirting with each other pretty much the entire year.