Nikki has short black hair and has tattoos on her lower back and leg with purple thigh high boots.
During GTA V, the player can get dances from Nikki. She is one of the four strippers who can be taken home for booty calls, only if her like meter is filled. However, to fill Nikki's (or an other stripper's like meter), one must get a private dance with her and flirt/touch her until the like meter has filled. After Nikki's like meter is filled, the player has an option to take her home after the private dance is finished (or ended by force). If the player agrees to take her home, he can meet her behind the club and take her home to have sex.
In GTA Online, after Nikki's like meter is filled, the player will receive her phone number and will be able to invite her to his/her apartment and do lap dances for free.