Lindsay & Sam's Holiday Plans

(WireImage)

Even as rumors of trouble in paradise swirl around them, Lindsay Lohan and Sam Ronson seem to be getting even more serious  — the couple is planning to take a holiday vacation with Sam's family to unwind.

"As long as everyone's together, it doesn't matter where they go," a pal of the couple tells OK!. Sam has a twin brother, fellow DJ and music producer Mark Ronson and sister Charlotte Ronson, and her mother is British socialite Ann Dexter-Jones.

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But Linds isn't forgetting her own family – "She's invited her mom, Dina, and brother and sister as well!" the friend reveals.