After I walked out of the bedroom, I made a brief stop at the bathroom and then proceeded on to my bedroom. The fact I had not cum, combined with thinking about what had just taken place with Bob & Carol, was causing my cock to begin to stiffen again. I was standing next to my bed slowly stroking my dick, thinking I would jack off before going to sleep, when I heard Bob's voice behind me say "Need some help with that?" I turned around and saw Bob standing there with a slight smile on his face. "I was thinking about draining it a bit before going to sleep," I replied.
"Well, in that case, let me help you." He said. Bob pointed to the edge of the bed and said "Have a seat." I sat on the edge of the bed with my cock starting to grow stiffer. Bob dropped to his knees between my legs and took my dick in his hand and then slipped his mouth over my cockhead. My cock was already sensitive after the fucking I had done with Carol. And now the light feel of his hand slowly stroking my shaft with his warm, wet mouth working on my cock's head was electric. In a matter of seconds my cock was fully inflated and straining.
Bob altered his movements and rhythms to keep me building but not quiet reaching the bursting point. This was very obviously not the first time he had sucked cock. After several minutes of this, Bob suddenly stopped and stood up. "Lay on the bed". He instructed. I scooted up on the bed while he stepped out of the room. I heard him in the bathroom and then he was back in a matter of seconds. In one hand he had a tube of KY Jelly and in the other hand he had a hand towel. As I lay on my back, Bob squeezed some KY on my straining cock and begin to stroke it. He then moved up and straddled me. "I have to start in this position. We can change later if you want." He reached down and took hold of my dick and positioned my cockhead against his anal opening. He slowly begin to sink down, causing my cock to push open his ass. After a few slow up and down motions, my cock begin to slide into him. He continued to slowly move up and down, taking more of my cock with each downward slide.