Lisa moaned softly as Ally continued with her thrusting. It made Lisa writhe slightly, and even more so when Gabrielle turned on the machine.
"I thought the challenge was to keep from orgasming." Lisa stated, feeling week in the knees when their clits brushed against each other. Allyson didn't mind them talking, but it was vibration time!
Lisa felt Ally's hold on her leg slacken slightly, having some room to move. "I do not loose." Lisa grumbled.