Despite reports the actress had fallen out with her former `Friends` co-star and close confidante Courteney Cox, Jennifer threw an intimate party to allow Justin and her inner circle, including Courteney, to get to know each other
A source told People: "They all had a great time and enjoyed Justin`s company."
The insider added the couple - who were first spotted on a dinner date last month are enjoying their new relationship and Jennifer is happy because Justin is not her usual type.
The source added: "They`re doing great. He`s edgier than the guys Jen usually dates. She really likes him!"
Jennifer - who was previously married to Brad Pitt and has dated Vince Vaughn and John Mayer - is said to be smitten with the `Your Highness` actor and can`t stand being apart from him.
A friend of the 42-year-old star - who first met Justin on the set of movie `Wonderlust` - said recently: "Jen is totally into him. They have been hanging out for months.
"She wants to be with him all the time. She`s diving in headfirst."