[Balls massage and nipples rubbing for 30sec]
Also the other girl takes off the bra showing a breast even more fantastic, if possible. She doesn’t waste time, grabbing Nikki's boobs while the Nikki's hand runs fast to the bottom, rubbing the pussy of her friend.
PUMA: Slave, continue playing with your blue balls, adding some care of your nipples for a while, so I hope your cock rest a little.
YOU: I’m a member just like you. Moreover my cock is famous between many girls of the sorority.
NIKKI: Slave, don’t forget that the insolence can be punished, we are gentle but don't overdo.
PUMA: Wait a second. You are “that” half-sister?... Nikki we are very very lucky today!