Start touching yourself at the sight
From Create Your Own Story
The sight is too much for you to take. You snake your hand between your legs and gingerly begin to stroke your member, dragging your hand up and down in time with Alex's movements, almost whimpering at the feeling. This was one of the hottest things you'd ever seen. Clearly, Johnson agreed. He began thrusting his hips, using one hand to steady himself on the desk, and the other to grab onto Alex's dark brown hair, openly grunting at this point, raggedly breathing as he used Alex, pushing himself as deep as he could go each time. You fucked yourself up into your hand, almost mimicking the movements, imagining it was you doing this instead, imagining what view you would have above Alex, fucking into him as hard as you wanted. And he'd take it, like the good boy he is.
Alex's little whimpers joined the chorus of noise, his hands grabbing onto thighs for support, eyes closed almost.
"Fuck, Alex. Swallow, don't you dare fucking spit" Johnson hissed, picking up his speed and burying himself into the warm opening of Alex's mouth. He grunted, hips stuttering as he came down the back of his throat, his hand holding onto the desk slipping and joining its other in Alex's hair, pressing the student into his pelvis and holding him there as he rode out his high. Alex moaned around the shaft, swallowing as he was told.
You were so close yourself, just a few more strokes …