Lindsay Lohan is "dating" Gucci model Adam Senn and they are "serious," all!

Lindsay brought her newest victim to her sister Ali's birthday party on Dec. 10. Dina Lohan is already a fan. “Dina really likes him,” the source says. “She thinks he is ‘good for her.’”

Senn and Lohan were texting and calling each other over the holiday weekend - and are certainly acting more serious than “just friends,” which LiLo has claimed via her Twitter page. 

Lindsay reportedly is already making Adam her shoulder to cry on "when things get bad." Forget any self-help books or what you've heard from anyone else, bringing drama to the table early on in a relationship is the best way to keep your man around.

I give this f*ckship until about 3 a.m. on New Year's day. Linds needs someone to go tongue f*cking with at midnight and then take her home when she's too drunk and drugged up to drive.