[Long hip thrusts at M=90 for 60secs as you lick the ball pussy faster]
Abby pushes her ass down against your face, beginning to suffocate you. You can only continue to lick her sopping wet pussy, hoping to satisfy her so she'll allow you to breathe. In the meantime you feel Julie's pussy rubbing against your thigh at the same pace of her stroking, initially long and slow but now much faster.
ABBY: Julie, the warm up is finished. Speed up and let me see if he has learnt his lesson. Lick faster slave, I want to cum and cover your face with my orgasm.
JULIE: Oh at last! I was waiting to really get faster. How I do love these sessions, taking control of a big hard cock, milking every last drop of precum without granting the pleasure of orgasm.