She uses you as a relaxation tool

She puts her hand inside the front waistband of your boxers and rips them right of your hips, then discards the rag off to the side.

"You are going to help me relax after a hard workout. But this is for my benefit, not your pleasure. If you cum I'm going to take your fuck stick here, and smash it with my biceps like this." She bends down and places your cock in the crook of her bicep, flexes and bends her arms. The pain is unbearable and it was only for a second. As soon as your cock is releases you fall to the floor and hold it gently.

"You seem to be a bit worried there. And as well you should. Because if I am displeased in any way or not wholly satisfied, this will be the last time you will be capable of giving pleasure to a woman, I promise."

"Now!" She grabs her left breasts and hefts it in a presenting manner. You immediately stand up and go to work.