Biker looking to join in

As she leans in closer and tells you that you two have company. You look over her shoulder and see a big badass looking biker with spiky green hair with his hand in between her legs. You can feel him rubbing a finger over her asshole as you are rocking in and out of her tight pussy. She starts to moan softly at the feel of being doubly stimulated and her juices are running down to her protruding ass. The big biker looks back at you and is almost asking permission to join.