No need for subtlety

Wren picks out three guys from the class. You’re somewhat glad that she doesn’t choose Mark. The three guys who end up standing before you are pretty nondescript. They all enthusiastically undid their belts and dropped their pants and underwear. You found yourself at eye level with three almost identical erect dicks.
“Young lady, would you kindly orally stimulate the gentleman directly in front of you r to orgasm, and manually stimulate the two gentlemen to his sides?”

By this point, you’re not at all surprised when your body reacts before you’re even sure you’ve heard the command. Before you know it, you’ve got your very first dick in your mouth. Not only that, but you’re really working it like a pro. Doing things with your tongue and breathing that wouldn’t have even occurred to you. At the same time, you’ve started stroking the two other guys dicks in perfect synchronization.

Quicker than you would have guessed, the guy in your right hand starts thrusting slightly shoots a glob of jizz on to the right side of your face and neck. As this is happening, the guy in your mouth also starts thrusting slightly.

“You there, in the middle don’t be shy. The purpose of the exercise is to inure this young lady to the experience of oral sex, so there is no sense in being coy,” instructs Mr. Book, in a bland, pedantic way.

Given a little encouragement, the guy in the middle grabs the hair at the back of your head and starts really fucking your face. This only lasts for about thirty second though, and then he pulls back a little bit, so that just the head of his cock is in your mouth, and fills your mouth with cum. You can feel your cheeks ballooning out slightly, and you know you must look pretty comical.

Finally, the last guy, who you’ve been working with your left hand cums, coating the left side of your face and neck.

The result of two cumshots on either side of your neck is that your left with an honest to god pearl necklace. You try to reach up and wipe it off, but you are still not in control of your own body.

“Class, I believe that’s all the time we have for today. Next class will be text books, so study up. Good bye.” With that, Mr. Book dismissed the class, Wren takes off quickly with everyone else, but not before she turned around, got in to position so you could see her and winked. Wren knew full well that you were still on the kneeling ground covered in cum, completely naked, and under Mr. Book’s spell.

“Have a nice lunch Mr. Book. Remember to leave some for next time,” Wren said as she parted. As she stepped out the door, you heard a small laugh from directly behind you.