Rihanna Instagram PHOTOS: Chris Brown's ex celebrates Grandfather Bravo's 85th birthday in Barbados with family [no boyfriend, no bikini]

Recently, "Diamonds" songstress Rihanna posted a slew of sexy bikini snapshots on her popular Instagram page:

Rihanna posts ex posts sexy cleavage, bikini, weed snapshots on Instagram before 'zombie gangster' Halloween costume war with Karrueche Tran

But on Tuesday (Nov. 5), RiRi looked elegantly beautiful while celebrating her grandfather Bravo's 85th birthday in Barbados:

badgalriri: "Threw Bravo a birthday ba$h at mama Fenty crib!! #85 blessed yearz! Many more to you Grandfadda!"

Family is everything to the 25-year-old songstress, so of course she'd take time out of her busy schedule to go home and spend some time with Bravo on his big day!

badgalriri: "That face... #BravoBirthdayBash."

badgalriri: "Slow dancing #BravoBirthdayBash."

badgalriri: "Birthday kisses #bravobirthdaybash."

RiRi also had a great time hanging out with different members of the close-knit fam:

badgalriri: "Family."

Apparently Rihanna's really enjoying life right now despite the drama going on with ex-boyfriend Chris Brown. Still, rumors persist that the two are still seeing each other on the "down low"...

Rihanna and Chris Brown back together on the 'down low?' Girlfriend Karrueche Tran rids Breezy's home of 'bad habits' during rehab, jealous of RiRi photos?