Taking the implement out of my booty he applied some more grease to it, and then tucked it back into my ass. Continuing to spread my bung broad with the tool, he masturbated me off in hopes of getting a sample. Looking up at the Doc entirely turned on and in a high sense of arousal. Luca arched down and the two of us embarked to kiss. Gently his lips pressed against mine, and the Doc was a great kisser. He removed the instrument from my butt, and told me that he would work on getting me off. Lowering his head back down to my cock, he gave me head. I had to give him kudos for more head, because I had a ton of oil on my prick from when he wanked me off. It took a minute or so, but the Doc had me rock rigid again, and I took over wanking myself off to give him the sample he was looking for. When I came, the blast shot up my pecs and caked my pecs all the way down to my cock. Not as much as the other day, when I first met Dr. Luca, but not bad either. He said that it was just what he was after. He told me that he would be calling me back for some more inspecting after he met with the other fellows in my inspecting group.