Lupita Nyong'o is rising to fame after named People magazine's Most Beautiful Woman Of The Year and winning the Oscars 2014 award for Best Supporting Actress in ''12 Years A Slave." But now fans are wondering: who is Lupita Nyong'o dating? The actress is reportedly secretly dating rapper K'Naan but hasn't met his kids yet!

A source dished to Us Weekly that Lupita Nyong'o, 31, has been dating Somali-born rapper K'Naan since September 2013!

K'Naan has two sons with pharmacy tech ex-wife Deqa Warsame, the publication reports. But it sounds like rapper K'Naan and People's Most Beautiful Woman Of The Year are taking things slow.

"She hasn't met his kids," the friend told Us Weekly.  

When USA TODAY's Elysa Gardner asked Lupita about a potential boyfriend and her dating life in February, her answer was: "I plead the Fifth!"

Whispers about who Lupita was dating also spiked when she didn't bring a boyfriend as her date to the Academy Awards 2014 - she brought her brother!

HLN TV reports that Lupita brought her brother and best friend Peter Nyong'o as her date to the Oscars 2014.

Lupita and K'Naan are based in New York and reportedly bonded over their similar interests.

"She loves his humanitarianism," a pal of the "Wavin' Flag" singer, 36, told Us Weekly. "They'd both passionate about African issues." Lupita was raised in Kenya.

Rumors were also buzzing that Lupita was dating Jared Leto, the star of "The Dallas Buyers Club" and fellow Oscars 2014 winner for Best Supporting Actor. At the 2014 Independent Spirit Awards, Leto won Best Supporting Male trophy for his role as the transgender AIDS patient Rayon. During his acceptance speech, Jared Leto thanked, "my future ex-wife. Lupita, I'm thinking about you baby."

Us Weekly reports that Nyong'o later introduced Leto to her mother Dorothy Nyong'o.

But when "Extra's" Mario Lopez asked Lupita on the 2014 Oscars red carpet whether or not she was dating Jared, she said:  "I don't know how to get away from this!"

When asked if there was anyone special in her life, Lupita teased, "I'm not telling you."