I (44 M) sucked a friend of mine (45 M) several times while he was driving around, but he would always stop me before he came. One day we were helping another friend move, and everyone else left with carloads while my friend and I finished loading his truck. I bent to pick something up in the living room as he was walking to the bedroom, and he called me a cock tease. I followed him to the bedroom and hit my knees, reaching to undo his pants as he walked up to me. "How's this for a tease?" I said as I pulled his pants down slightly to expose his always semi-hard cock. I began sucking, and my only rule had always been no shoving down my throat as I was still working on my gag reflex. He moaned as I sucked him and ran my tongue around his head. After several more minutes than I usually sucked before he stopped me, he put his hand on my head and wrapped his fingers in my hair. I thought he was going to shove my head down, so I slapped his hand away. I then found out he was trying to tell me he was about to cum as I felt his cock spasm in my mouth and he moaned his orgasm he shot load after load of cum deep into my mouth. I swallowed every drop until he stopped spasming and pulled himself out of my mouth. We finished loading and took everything to the new house, meeting everyone else with a bellyful of cum and they had no clue. So many times after that I sucked him and he came deep in my throat, I became his living fleshlight to cum in whenever he needed it.