PARTY 25: Rihanna SHARES BIRTHDAY PARTY PICS From Hawaii, Chris Brown Gets Some Of Her Cake

Rihanna posted pictures from her birthday party in Hawaii last night where she celebrated with Chris Brown, her bestie Melissa Forde and others.  See the birthday cake inside….. 

Rihanna turned 25-years-old yesterday and she celebrated with an intimate party in Hawaii with friends.   And Breezy made sure to get in some cakin’ action.

Her boo Chris Brown, who spent the earlier party of the day on the beach with RiRi, helped make her day special.  

She partied with her little brother Rorrey Fenty too. She tweeted, "Me and my big little brother."

She and her girls snapped pics with the Polaroid.

The fellas held it down and gave RiRi a birthday shout out.

Then she tweeted a pic of her girlfriends with the caption "My #hoes"

Her assistant Jen Rosales rocked an animal print for the party.   And held up a small bag of a very mysterious white powdery substance.  Oh we can only wonder what THAT is….

Hairstylist Ursula Stephen made the trip and posed with Melissa.

And of course there was birthday cake for everyone.

And we can only imagine what happened behind closed doors as she shared , "Put this #cake in ya face! I made him lick all this icing off! Lol"

We bet….

Photos via Instagram