Keaton and Parker buddy up

Don't panic. Diane Keaton isn't really dating Sarah Jessica Parker.

They just look like they're pulling an Ellen and Anne/Portia at the Los Angeles premiere of their new comedy, "The Family Stone."

Time to lose the tux, Diane.

Men's clothes. Never married. Not even dating. Single mom of two adopted kids. People are gonna start to wonder.

Besides, you're not fooling anyone. We all saw your all-too-brief nude scene in "Something's Gotta Give" and everyone knows there's a seriously sexy bod hidden underneath all that terminally quirky femenswear.

Photo: Diane Keaton and Sarah Jessica Parker make a pretty cute couple at the premiere of "The Family Stone."
(Steve Granitz / WireImage)