He's old enough to be her dad.

We spotted Tommy Lee making out with his braless Vine star girlfriend Brittany Furlan after a sushi date in Calabasas yesterday, and we're in slight shock that he's still able to get chicks despite his aging rocker status. The 54-year-old Motley Crue musician seems smitten with the 30-year-old brunette beauty, but she's no Pam Anderson!

The music legend might want to put a ring on it, because his band retired in 2015 after their $86 million grossing final tour, and he's not getting any younger.

We wonder what he thinks of his Baywatch ex's new romance with Julian Assange? Talk about not having a type!