You have got to stop Rickie from raping you, which is difficult to do when your preferred tactic is to say "Yes, Please.". That does prevent rape, but...

The fact is your feelings are conflicted, or, maybe more accurately, messed up. You can rationally say all you want that sex right now is a bad idea, but your body is not listening. You are just not able to even start to push him off you. Maybe you aren't a prisoner of your appetites, but you are not in control of them. And that means that things are going to get physical rapidly.

However, if you can't stop your appetites, you can at least choose which one wins. Vore still worries you some, but it seems better than sex at the moment, and so you open your mouth nice and wide...

Rickie has sex on his brain, and so he resists, or rather tries to. But he has to stay on you to have sex with you, and he does seem cool with being eaten. So it is not long before his head is in your mouth and he is on the way to your belly.
Not that he doesn't try for a detour.
He tries to grab your torso so he can enter both of your sets of lips. However, you roll over, and keep him out of your womanly center. But not off it. He caresses your mound quite pleasantly, even if it still scares you. Desperately, you try to maneuver around to keep your vitals out of his reach, but he manages to reach, and excite, you. So much that you also reach out and grab his staff, trying to give him the same pleasure you are receiving.
That you succeed at. Your burst of ecstasy is very pleasant, but his explosion is a very powerful one indeed. It quiets him down enough that you can resume eating him. He does taste nice, and you enjoy him this way too.
But as you settle back, expecting a quiet time now that he is in your stomach, he reminds you that he does not need to be outside of you to play with your body. He is entirely able to caress your loins, and does, despite your pleas, pleas that change their nature as you come closer to climax, and then to additional climaxes.
It is three times before he tires and lets you sleep.

Fortunately? you wake before he does, and you resolve not to continue from where you left off. You are not entirely sure why when you come down to it, but you want to get out of here without sex or vore. So gently move and make all preparation for the day. Only then do you release Rickie. And once you do, you flee the room before he can start suggesting you start the day in a way that sounds all too appealing to you.

You make your escape and take a breathe of relief, and then you look around and start to realize there may be drawbacks to your escape.
You haven't had breakfast, something your rumbling stomach reminds you of, and the other students in the hallway suddenly look quite tasty. And quite a few of those students haven't had breakfast either, and may be eying you as a solution to that. The cafeteria is not far and ought to be able to take care of things, but one way or another, you expect you will solve the problem before you can get there.