You name your price.

"So... you 'need' to do that again?"

"Yes, I do. Please," she says, reaching back and taking off her panties.

You sit back and frown. "Okay, but no more teasing. I've had enough teasing from Trish, April, Joanne, and Misty. Mandy... will you be..."

"Yes!? Yes!?" she says, excitedly.

"...my sex ****?"

".... What!?"

"I've been teased a lot, and this is just my first day. You're the first one to provide me with real relief. I need someone I can call on when I want to have sex. Also for running errands, looking things up, things like that."

"Ah... I don't know about that. I wasn't really looking for a master-**** relationship."

"You don't have to wear a collar, but you would have to call me 'Master.' Are you in?"

"... And if I say 'no'..."

"I'll do you now and ask another girl later on. Maybe you can recommend someone. You don't have to decide now."

You stand up and take her hand. You sit on the bed, and have her face you, straddling your cock. It doesn't take any foreplay for her to start bucking up and down on you, with quick short stops to kiss you on the mouth. It takes you longer to come the second time than she does. Her orgasm is quiet and her whole body shakes, just before she collapses onto you like a puppet with its strings cut.

You're still erect and wanting it, but you push her off of you anyway. Your stay here will be miserable if you don't establish some control. "Out," you say, pointing at the door.

Lying on the floor, she looks up at you, confused. "Huh? Wha...?"

"Thank you for letting me go. I gave you your reward and I'm glad you enjoyed it-"

"What's wrong? Oh, I guess I came first that time, didn't I?"

"Yes, you did. Hopefully, my next bedmate will be a bit more-"

"Wait. Wait, I'm sorry. Here, let me..." She stands up and reaches for your member, but you stop her.

"I'm sorry, Mandy. I don't want to have to demand it every time-"

"Okay! Okay," she says.

"Okay, what?"

"Okay, Master. I'll be your sex ****."

"Give me your cell phone number and use your mouth on me."

She kneels before you and takes your cock in her mouth. She instantly pulls it out, wet with her pussy juices and saliva. "It's... still got my come on it. Can I clean it off before... you know..."

Her mouth felt very good and you want it very badly. You gently put your hand on her head and push it towards you. She tenses for a moment, then leans in and takes it, without question this time. She starts rubbing it with her fingers and sucking and slurping on it with her mouth, swallowing the traces of your two previous fuckings. It takes you only a few seconds to come in her mouth, and she does a very good job swallowing all of it.

She gives you her cell phone number and promises to call you "Master" even around other students, before you excuse her for the night.

After locking the door, you hop into bed and go to sleep.

The next morning as you're reading in bed, you hear a knock at the door.