Agree to the bitch's physical

You strip off your clothes as commanded. She takes a few quick looks at your eyes, mouth, and tongue.

"Mmhmm.." she says and jots down some notes.

She starts working her way down your body, pausing at your nipples and briefly rubbing her finger on them, apparently satisfied when they harden. She takes a quick look at your ass, judging the shape and looking for imperfections and shines a light at the exit to examine it.

Then she goes for the goods. She reaches down for your balls and starts fondling them around, feeling for any lumps. Satisfied, she snaps off her glove and jots another note. She asks if you are fully erect at this point.

You nod that you are and she pulls out a loose measuring tape and takes a quick measure of your length and girth, jotting it down. She seems very nonchalant about the whole process.

"Okay start jacking off."

"WHAT??" you say

"Did I fucking misspeak? I said start jacking off! How simple can I make it? You're so stupid."

You decide to listen and while awkward, you reach your hand down your to your shaft and start slowly sliding it up and down, uneasy.

"Faster."

She commands.

"Faster."

She's holding a stopwatch.

"FASTER."

You're really pumping it now, all awkwardness is gone and you catch yourself fantasizing about the coach, the trainer, and all the girls.

"FUCKING FASTER!"

Your dick is throbbing, you can barely believe what's happening."

She pulls a cup out of the drawer.

"Cum. Now."

You explode and your seed flies into her outstretched hand as she collects the sample into the cup for later analysis.