That's something I'll ask the good doctor

The sorority girl sat with her back straighter than the other girls you've had. From your lowly position beneath her ass, you can see all the way up her back and even her neck where it had her special dark hairstyle curled up on top. She seemed way to confident and comfortable sitting on your face.

Her asshole got serviced by your tongue as she underwent the procedure. As you slid your wet tongue across her asshole a thousand times, your thoughts went back to what she said about all those other sorority girls coming here. This was clearly too much for you to handle and you decided to give a stern talk to Dr. Bowers.

The procedure was finally over and the girl lifted off her face. It was such a relief to have any of the women take their weight off your jaw, that you took joy in the feeling until the next test subject would enter.

Four more women from the university sat on your face and had their asses licked. Finally the day was over and they unlatched you so you could get dressed and go back to your dorm room. You never told any of the guys what you did at the lab other than you were helping with a research project.

On the long walk back to the dorm, you spotted a girl with red hair and glasses. Then came the realization that she was one of the ones that you had licked. It was odd seeing her walking along on campus and knowing that you had licked her asshole. You hoped she did not recognize you, so you waited to let her pass by and looked away to avoid eye contact.

Tomorrow, you planned on having that talk with Dr. Bowers about getting out of this project. Extra credit was one thing, but perhaps you could just study more.