up your pussy all night?" Mel exclaimed, "You lucky thing, I hope it's bigger than that," she added pointing at the limp cock dangling between Christine's legs.

"Why don't you make it bigger," Christine said, pushing Mel down to her knees in front of her.

"You're joking, aren't you?" Mel said, looking up at Christine but she still took the limp cock into her hand and started stroking it.

"Feels nice," she exclaimed, "Just like the real thing," she added, moving the loose skin up and down the shaft.

Christine moved her hand to the side of the harness and began to move a small dial hidden in the embroidery. The cock pulsed and Mel jumped back, alarmed.

"It moved," she whispered, "I'm sure the fuckin' thing moved itself."

Christine moved Mel's hand backunto the cock and covered it with her own, both girls wanking the hard shaft. The cock moved again, and then slowly uncoiled like a cobra raising its head. The appendage got bigger and harder until it stood fully erect, nine inches of hard rod. Mel and Dawn looked on, amazed.

"How the fuck did you do that?" Dawn asked bending to examine the cock, at close quarters.

Christine moved the dial back slightly and the cock lost a little of its hardness and pointed almost horizontally away from her body.

Dawn grasped the shaft and started wanking it again, a turn of the dial sending it fully hard once more.

Christine started to answer Dawn's question at last. "Some compressed air cylinder's hidden in the harness."

"Never mind that, can you fuck