|her naughty cake|
We're told although they didn't get EVERYONE to sign -- Chris eventually walked in ... and spent a huge chunk of the night nuzzling up against Rihanna.
According to sources, the two got real intimate -- sitting next to each other, talking, and holding hands ... all perfectly legal ever since the restraining order was lifted.
In related news.... word has it that they are wrong on a single together.
Can they ever get back together? Well time will tell. chris' gf had better watch her man...loooolll!!!