This lesbian is riding on you, her girlfriend having approved of it all... she's just curious. She needs to confirm she isn't into cock. And honestly, you weren't the best man out there to take on this task. She keeps asking if it's in and rides it on the verge of yawns. Then says to swap spots, that maybe missionary works... but same deal, she just can't figure if you're in there.

She admits that most lesbians use BIG strap-on's to fuck their partners. And here you are, not very impressive. But as she's on the phone with her girlfriend for a few minutes, she makes it even worse, telling the girlfriend to prepare THE BIG ONE for when she's finished with you. Ya know, to finish the job for her.