Ms. Darwin wants to give, not just receive

Reaching up with both hands you spread Ms. Darwin's ass cheeks even wider as she leans against the chalkboard above you. Burying your nose in her ass you push your tongue as deep as you can into her and lap at her juices. You continue this for several minutes before she asks you to stop and lay back on the floor. Knowing what she has in mind you do as she asks and lay back while she turns to smile at you. "Lets see what you have for teacher," she exclaims as she is standing directly above you. She slowly sits back until your face is once again buried in her wetness.

As you continue to please her with your tongue she quickly unzips your fly and pulls your now throbbing dick from its confines. "Mmmm, you don't disappoint," She says while squeezing your mass, before leaning down to lick at the base of your cock.

Enjoying the sweetness at your tongue even more, you start licking with even more fervor as you reach up to pull her hips and ass against your mouth. Soon her velvet lips are moving up and down the length of your cock and you find yourself surprised that your teacher can give such good head.