The good old Doctor Dick referred Jacob to me.Jacob needed to come in for another endurance test, which I was all too happy to administer to Jacob. I went through the usual routine with this stud. I checked his senses, reflexes, and checked his heart. Now I was ready to get down to the fun stuff. I had him remove the rest of his clothing while I watched. My dick began to twitch in my pants as I fought to contain my growing erection. I told him it was now time to begin the endurance test so I had him lay on the examination table while I started to work his dick with my hands. I had him quivering on the table and within minutes I had him shooting in my hands. I brought my mouth to his cock and licked his dick clean. I looked him in the eyes and told him he had to repay the favor. I took his place on the exam table and he began to jerk me off and switched off between that and taking my dick into his mouth. He really knew how to suck some mean dick. My body was tingling as he formed a suction around my cock with his lips and slid his tongue on the under side of my cock head. I told him I was close so he started to give me a handjob and I came one stress-relieving load.