Really give it to her

The sensation of that tight, warm pussy wrapping around his shaft and milking him was proving to be both the most pleasurable experience of his life so far, as well as the most extraordinarily teasing. He could've let her do her thing, but to have Dr. Ivy so passionately accept him like this was all the permission he needed.

Xander's hands, previously shaking and nervous, now steadily set themselves in gripping at her asscheeks under her skirt, a brief glance her way, as if still unsure of himself. It was ridiculous that he might think that a girl would jump his bones so hungrily and still not be okay with him groping her ass, but of course - he was still so new to this.

"Yeahhhh, you like that babyyyy?" Madison encouraged.
Getting a firmer grip on her booty, he started timing upward thrusts with guiding her ass down, really driving it into her now, causing her to squeal out in both surprise and ecstasy. "Awnghhh UNFghhh ANHHH!!" she yelped out, before letting out a giggle, spurring him on to keep up the pace.
The room was now filled with the potent aroma of sex, and if anyone dared even come down the hallway, they'd hear the faint whimpering, grunting and wet slapping of a teen boy deep dicking his therapist, a woman twice his age. Thankfully, the place was built for confidentiality of client's, and so the risk of being burst in on was relatively low, as was the risk of being heard.