Is this the reason he and Charlize called it quits on their engagement?!

Minka Kelly celebrated her 35th birthday with a lavish dinner in Napa Valley, and normally we wouldn't care, except for the fact that newly single Sean Penn was one of the three guests at the table, TMZ reports! The Hollywood bad boy split from fiancee Charlize Theron last month, and it looks like he might be moving on rather quickly with Chris Evans' ex.

The actor was allegedly overheard telling people that he met the brunette beauty at a Haiti charity event, which makes it sound like they are definitely dating. Not only that, but the Oscar winner picked up the tab for the whole group!

We have a feeling his South African former sweetie will NOT be happy when she catches wind of this!