Sex kitten. Sunniva is an old Irish name which originaly means "gift from the sun". It was adopted by the norwegians after St.Sunniva came to Norway. In modern times however a person named Sunniva is often associated with a feminine, sexual and curvaceous woman. Sunniva can also be defined as someone who has a lot of sexual knowledge.
First Person:"Wow, look at that beautiful, curvaceous woman!"
Second Person:"Yes, she's a real Sunniva, huh?"