Via MTV reports:

Rihanna has proved her romance with Chris Brown is still going strong, spending her 25th birthday with the R&B bad boy in Hawaii.

Despite reports suggesting the pair may have split, Rih took to Instagram yesterday to share a snap of herself sitting on Breezy’s lap – showing off her assets in a bikini and fishnet skirt.

Chris can be seen wearing dark sunglasses in the image as he sports a stern expression, while the Bajan Babe playfully pokes her tongue out at the camera.

Along with the pic, she wrote: “Pour it up pour it up! #birthdaybehavior.”

The couple were later seen taking a romantic stroll by the water, with Brown taking RiRi by the hand and leading her on their walk.

Rihanna also tweeted a snap of herself with Chris from her surprise 20th birthday party, accompanied with the caption: “‪#throwbackRiRi‬ my surprise 20th birthday party!! Im an old b*tch now! Thank God for His gifts and His…”

As well as partying with Brown, Rihanna’s pal Katy Perry also wished the star a happy birthday, tweeting: “HAPPIEST 25TH BIRTHDAY to my baby girl ‪@rihanna‬! I wish I could b there drinking Mai-Tais & telling haters to eat a d*ck w/u!”

Earlier this week, RiRi also hit the headlines after her dad Ronald Fenty said he would be “ecstatic” if she married Breezy.