I cupped my hand to gather some water and gently pouring it on those perfect tits. Katie seemed to enjoy it so I continued for a bit. She had gotten c...mfortable, almost dozing off. Running both of my arms under hers, I started massaging her breasts in my hands. She moaned softly and had reached down to play with her pussy. I let her continue and asked if she was ready for some more fun. “Oh, Yes”, she replied. I removed her hand from her pussy, used my left hand to spread her lips; my right. She replied, “Just do it if you have too.”Well, I didn’t hesitate one second. She basically said yes, because I certainly had too. I had wanted to feel of her titties since they started to grow the year before.So I stood behind her, pulled her close to me, and slipped my hands up under her loose T-shirt. I cupped both of her small breasts in my hands and mashed my growing hard-on into her blue jean covered ass. As my hands held her small breasts, her nipples harden in my palms. I started to. "I'm gonna blow," Marv said.He gave his thick tool a final hard jerk and his cum shot out onto Kay's titties and ran down her hand.I tugged the base of my own cock. Kay had her hand around the middle and her lips over the tip. I felt my balls pull up tight. My dick spasmed. And then I started unloading in her mouth. I pulled back and my jizz landed on her neck and tits. She ran her fingers through it and mixed it with Marv's. She brought her hand to her mouth and licked it clean.The three of us. He then stood and walked to his office door, open it to look outside and closed it again. He hesitated before locking the door again then turned back around.“I’m inclined to give raise your grade to a ‘B’ only because it might seem suspicious if I raised you two letter grades. It also appears that there aren’t any more students looking to meet so my office hours are officially over.”“Thank you so much” I said as I was standing up to leave. He motioned to wait.“If I said I was curious and that.