The 'Twilight' actress - who was dumped this summer by her long-term boyfriend Robert Pattinson - has been romantically linked to actor Lane Garrison in recent weeks and she has been letting him stay at her house in Los Feliz, Los Angeles, while they do re-shoots on their film 'Camp X-Ray'.
A source exclusively told Yahoo! omg!: "Kristen was enjoying Lane's company and he was spending a lot of time with her at her home. He doesn't live in LA so he moved out of his hotel when they became close and moved into the guest wing of her house in Los Feliz."
Kristen, 23, and Lance, 33, first met on the set of the drama movie - which is about the detention facility of the same name at Guantanamo Bay - and quickly became close.
The actor has a chequered past; he served three years in jail for vehicular manslaughter in 2007 after a drink-driving accident which left 17-year-old Beverly Hills High School student Vahagn Setian dead.
Lance - who is on four years parole - was arrested in April 2012 on a charge of misdemeanor battery for allegedly slapping his ex-girlfriend, Playboy Playmate Ashley Mattingly, across the face outside her Beverly Hills apartment.
Kristen's brother Cameron has told his sister he has concerns about her getting romantically involved with Lance because of his history.
The source said: "Kristen's big brother, Cameron, has told her he's concerned about the new relationship, especially since his recent arrest after his jail term ... But Kristen is trying to pull her life together and she's been leaning on Lane since they started filming together. She understands his past but trusts that he's changed and is really enjoying getting to know him."
Since Kristen and Rob split for good he has been linked to several woman, most recently Riley Keough.