He sucked even harder as I felt my dick start to throb one step away from eruption and suddenly he grabbed my balls, pulling them and rolling them in ...is fingers as my ball sack got tighter , I felt his middle finger touched my asshole as my cock got even harder. I screamed with relief as my cock was all the way down his throat I let go and squirted like I never had before. The wall of the stall kept me from dropping to the ground as I shot my cum into his month repeatedly. Oh God it felt good,. "Which is where, exactly?" Now, now, I am not going to fall for any of your feeble ploys. You already know too much. What I need to decide is, after your debriefing, what I will do with you."Doc's comment sounded ominous. Would this little scientist actually consider something fatal? Why, was he hiding something? What would be so valuable, anyway? "I don't know much. Less than you'd imagine. The clock just takes me places." I decided he didn't deserve any more information. Besides, he knew what. Jenkins." I replied, "I will do my best to help you. I'm not a virgin you know."Technically, it was true. Early in the semester one of the other girls in the house had shown me the benefits of a plastic vibrator for a busy student on a budget. Mine had been my nightly companion ever since.Mr. Jenkins looked at me with skeptical eyes. "Are you sure?" It would be the least I can do for someone who's been so nice to me." I smiled.He seemed to come to a decision, and said, "Ok, Nina, why don't you. But sucking his balls was not a pleasant job for me, because I shaved his balls 3 days ago, and newly grown hair was pinching like pins. He has lots of hair on balls. I was sucking him with full of my attention. I was trying to satisfy him. His fat penis was moving in and out my mouth. He was pushing his hip from the bottom and breathing heavily. I was sucking and sucking for a long time. In middle I took a pause and told him, “let me know your sperm is about to out.” He replied, “OK” with a.