I give her my permission to keep going

I was gasping for breath; my cock was running the show, not my brain, under her steady hand pumping my thick hard shaft. My cock felt so hard, it felt bigger than ever before. I only wanted to have her keep going. “Fuck, yes keep it up. I want to fuck you. Fuck me with your tight pussy.”

“Mmmm, I thought so,” she said back to me. Then she let go of my cock and stood back from me and stripped off her lab coat. She was dressed in pair of white low cut panties. I could see a wet spot at her crotch. She was wearing stockings and garters to go with her black pumps. Apparently she was getting more than a little excited by what was going on. Her big nipples were getting darker as she grew more excited and her nipples were just begging for me to suck them. They were nice and stiff and I could hardly bear the frustration.

“So come on fuck me I said to her. Hurry up I need to cum. Fuck me, fuck me right now!”

“All in good time, let me collect a sample from you first and then we will see about what happens next.”

“What the hell are you talking about?” I screamed back at her. My cock was thick, hard and engorged with blood. I was ready to shoot off in seconds. I continued talking to her, “What are you talking about next? My cock is shot; this is my last go round. How much more can you expect from me. Just fuck me and let’s get it over with. I am so close, come on fuck me.”

“You will be surprised. I gave you a little something in the water you drank before you went to sleep. You are going to be very hard for the next few hours, and we are going to enjoy every second of it. I can’t let you leave now. We need to keep going so you don’t damage yourself.”

“Damage myself, what the fuck are you talking about you crazy bitch, fuck me. Fuck me right now.”

She slowly stepped out of her panties and held them up near my nose. I could smell her pussy and my cock twitched even more. “Ahh you are killing me. I need you to fuck me right now! Come on let’s do it.” She just grasped my cock again and started to jack me off. My cock was slick with pre-cum as I was dribbling a steady stream of thin cum juice.

“Fuck, come on fuck me,” I pleaded with her. “I can’t take it.”