I enter her ass.

Her eyes widens as she feels me enter, "That's a very big tool! I was hoping you'd use that one! You make sure you fuck me as deep as you can, John!" I draw my fingers between her pussy lips and rub in her pussy. She tenses just a little, as I enter her ass. "Oh, you have a bigger tool than I thought, John!" my teacher screams softly.

"Don't push yet, wait and let me get used to the size," she moans. I do as she asks, and feeling her rectum relax some, I hear her moan out, "OK, you can go again, but go easy at first!" I start to work my cock for her, pushing in slowly and pulling out to the point her rectum is grabbing tightly to my cock head, not wanting it to get away.

Doe relaxes even more and begins pushing back with her ass, driving me deeper and urging me to go faster and harder. Her breathing grows heavier and I follow suit. Her rectum is wet and slippery from my pre-cum and it makes the friction just plain incredible.

As she nears the point of cumming, she reaches down and starts rubbing her clit furiously, yelling at me: "Keep probing hard in my ass, John, I'm real close!”

I tell her, through quick breaths, that I think she is right.