Part 2, part 1 is in my profile.
You look over to see her getting guided onto the bed by him. Her giddy almost gleeful about what she knows is going to happen. You watch them as I continue to ride you, you watch as he teases her clit with the head of his cock. You see her face change as he starts to slowly slide into her dripping pussy. He knows how to do this, any guy with a cock like that knows how to tease a girl. She screams and moans and he slides deeper and deeper inside, all while remembering to pull out and tease her clit. Finally you see it, you see her face and hear the low moan as he slides all the way in. Then you watch as he goes faster and harder.