Rihanna, Ashton Kutcher dating for past eight weeks?

London: R&B star Rihanna has reportedly been dating Ashton Kutcher for the past eight weeks after the pair met at a party in December.

The 24-year-old singer was seen leaving the `Two and a Half Men` star`s Hollywood home earlier this week and is said to be smitten by Kutcher, who split from wife Demi Moore in November amid a cheating scandal, reported Sun online.

According to her friends, the singer is also considering joining Kutcher`s Kabbalah group.

"The flirting began as soon as Rihanna and Ashton met and swapped numbers. That moved on to texts and arranging to meet. They snuck off to a Santa Monica hotel a few weeks ago. They are two single people having a fling, so thought it would be best to meet in secret," a source said.

"Rihanna has told friends he`s funny and cute. Both of them love a good time and think they`re too busy for anything serious just yet. She`s starting to enquire about Kabbalah sessions with his rabbi.

Kutcher, 34, is keen to keep the romance as secret as possible as he doesn`t want to upset Moore, who has recently completed a stint in rehab where she got treatment for exhaustion, substance abuse and an eating disorder.

"Ashton does not want to rub a new relationship in her face. She`s still vulnerable. He`s a good guy and, with all Demi`s recent health problems, people have forgotten that," the source said.

Rihanna was recently linked to her abusive ex-boyfriend Chris Brown.