Paula Patton ''isn't concerned'' about allegations Robin Thicke locked lips with another woman.

Lana Scolaro, who recently uploaded a picture to Instagram of the married singer, 36, with his hand on her butt, now claims they also shared a passionate kiss at the Greenwich Hotel in New York recently but Robin's wife says there is no truth to the allegations.

A spokesperson for the couple told Life & Style magazine: ''It's just a girl looking for some attention. Paula and Robin aren't concerned.''

The 20-year-old student claims she travelled to the MTV Video Music Awards after-party on August 25 with Robin, whom she first met a week earlier through mutual friends, and his actress wife, and says that they spent much of the evening kissing.

She said: ''I went to the bathroom, and when I came out he was standing there. He turned off the lights so no one could see us, and he started making out with me. He was grabbing me. He was like, ''I want to get you into bed!'''

The blonde beauty also claims that Robin did not care that his '2 Guns' star wife, 37, whom he has been married to since 2005 and has a three-year-old son with, Julian, was somewhere else in the same room and even encouraged her to speak to Paula directly.

She said: ''I don't think he cared what she thought. I was with him the whole night!... His hands were everywhere.''