Rihanna laughs off closet bisexual rumours

R&B star Rihanna has laughed off rumours that she's a closet bisexual.

The 'Umbrella' hitmaker dated fellow pop star Chris Brown for two years, before their relationship came to an end this year when he assaulted her.

The 21-year-old recently declared that she was not yet ready to date, but temporarily swearing off men has only sparked speculations that she's secretly harbouring a love for women.

Saucy photos surfaced online featuring the singer groping a female friend have further fuelled the speculation.

One pic showed Rihanna fondling the breasts of a gal pal – but the singer has laughed off the saucy snap, insisting she's just a big flirt who appreciates the female form.

She told New York DJ Angie Martinez, "There are tons of them (photos of her grabbing breasts) online! I don't have a lot, so anytime I see a good rack (pair of breasts), I grab 'em. Women are beautiful. I'm not into them, but they're beautiful. Girls just wanna have fun!"