>summary: first of a planned series. You're a university professor, and at the end of term, you offer a favourite student free lodging. Very conditional lodging. Locked in a kennel at the end of your bed lodging.
>tone: firm, yet soft spoken. You don't need to get angry, but can play the disciplinarian if you wish to. 

"Yes, come in. [pause] I suppose you're wondering why I called you in here. I wanted to make you an offer. I overheard you mentioning that you were looking for somewhere to stay between terms, and I had an idea. [pause] Hang on a moment, I just realized I need to finish something. [pause] Your final grades are submitted. [dramatically] /Now/, there's no conflict of interest. [pause] Why don't you take a seat and listen to what I have to say?"

"First off: I've seen how you look at me. It's cute. More to the point, I've seen what you like to look at. [pause, comforting] There's no need to blanch like that, I've seen worse. Hell, I've /done/ worse. [pause] A word of advice, though: when you show someone a draft, make sure to close everything else. I took the opportunity to take a quick look when your back was turned. [predatory] It's not like anyone will believe that I did that. Now, this could turn into something wonderful, so just sit down and listen. [sultry, smirking] If it would help, there's a gag in my desk."

[optional: improv gagging your now willing student]

[firmly, clear throat if you want] "As I was saying, [softening] I know you're looking for a place to stay for the next couple of months. Similarly, my place does get a little lonely. If you're willing to follow rules and make yourself useful, I think there might be a place for you. Rent free, of course. I don't want to exploit you [emphasize however you like] in that way. [pause, cold, temporarily dashing listener's hopes] I'll be having you as a second pair of eyes on my work, and you'll be able to get some more hands-on experience with what you were studying. [pause, feigned coldness, enjoying the idea of messing with the listener] No. I mean practical experience in the field, and you know it. [pause, playful again] I'll also be demanding oral and massages regularly. Now, there is a school policy about not having sex with students, but I don't really care about the specifics. I know I'm not supposed to ride you like the pelvis breaking tigress I am, so you'll need to wear something to spare me the temptation. I know you're familiar with them. [brightly] Sure, there is the side effect that you'll be frustrated and mad with lust, but, again, free lodging."

"Don't worry, I'll let you out every few days, and I might even let you gratify yourself... [pause] If you're willing do it my way. It won't be too difficult at first, just kneeling and looking up at me, or only after having licked me to a wailing finish. Marking things and trying to be unbiased is boring, so I have every intention of being unfair. [pause] Maybe, occasionally, in your favour. There are other terms I might impose, but let's just get the formalities out of the way. [ungag the listener, if you applied it earlier] Now, would you like to stay at my place between terms? Just say those two little words I want to hear."

[chuckle/giggle/soft laugh of some description, then pleased] "Such a good boy. You can start by getting me off. [pause, play-acting annoyance] No, I'm not moving. You can hike up my skirt and kneel under the desk. Get to it." [improv cunnilingus to orgasm, be as bossy as you like]

"Now, stay there. I've got another class' worth of marking to do, and I like the feeling of my calves on your back."

[TO BE CONTINUED]