Pry Open your Ass with your Fingers

With no luck in trying to push it past your sphincter with bending down. You take your hands and put them on each side of your asshole, and manually pry it open. The sensation is weird because you have never really opened your asshole in this way, and the only time it has been open was when you were on the toilet taking care of your business. But you are shocked to see that your teacher has reached over for her bag and grabbed a bottle of lube. She sees that you noticed her bottle of lube and says:

"Sometimes I keep a bottle of lube incase I have to break in someone tight."

You can't really argue with that so you just nod it off. But you are even more shocked when she puts the cap in your pried open asshole and starts squeezing the bottle and depositing the lube directly into your asshole. You can feel the weird sensation of a liquid gushing up and down your anal canal. She continues to pump more and more lube in for around 10-15 more seconds to make sure you are very well lubed up. She then pups a dollop of the lube in her right hand and strokes her cock a few times to rub the lube all around the cock to make sure it was nice a wet so it would be able to fit inside of your asshole.

Once your ass is basically pouring out lube, she realigns her horsecock with your entrance. You bend your knees down again this time to put pressure on your fuck hole with her meat stick. you push down a little more to the point where it feels like its about to go in, you give it one big push.

Your eyes go to the back of your head you can only see the whites in your eyes. Your mouth fly's open and you make a aheago looking face. She has penetrated you for the first time, her head is only in about 2 inches but your asshole is stretched father than it ever has before by some considerable margin. You instantly want to be filled up by more so you try to push down more and more, but its just to thick. So you ask: "Enter, I need to be filled more!!! Please its to thick to push in grab my hips and pull me down further!".

She simply smiles at this and she does what you asked to the vowel, she grabs your hips. And pulls you into her pelvis more and more, harder and harder. She pulls you in so far you get to around 10 inches of her gigantic horsecok inside of your backend. You ask her to stop because your mind is going blank and you are loosing the ability to blink, you wait about 15 seconds to regain your mental capabilities again and start pushing again on your own to tell her that you are ready to continue. She picks up the message but when she starts pulling you in, you feel a sense of... need. She is pulling you like she needs it, like she cannot survive without it, like her lust for more and more pleasure is overcoming her sense of common sense.

She continues to pull you in closer and closer to her pelvic bowl, currently she is about 18 inches in your asshole and you can feel it streching your ass to the limit, so you say:

"Enter, I don't think I can take it all! It is stretching me out to much I can feel it going through my ass.

She pretends like she doesn't hear you and continues to slowly ease your asshole into taking her cock. And after what felt like another hour but you guessed more than a few minutes she finally got the rest of her cock inside of your fuckhole. She screams in lust and pleasure and you moan in ecstasy when this happens. You have never felt so full like this, it was something to have this cock forcing open your throat. But a whole other story of how it felt all the way in your asshole.