Maybe it's already happened to you: you need to work but you can't because you're overcome by the urge to suck a good cock. I couldn't take it anymore, so I took a break. The only way I could concentrate again was to give in to temptation. I met this guy with a big dick who had balls full of cum, I quickly went over to his place, got down on my knees and enjoyed myself. He fucked my mouth hard and spurted on me, I was satisfied and could go home and work.
