Before covid I used to work at a small office in a residential area. One day I decided to download grindr and see who's around. Turns out nobody interesting so I delete the app. One Saturday I was alone at work and horny so I re-download the app and a handsome and fit man in his late forties message me. We exchange pictures and I already know he can't host because he's straight and probably married which turns out to be true. I said fuck it and invited him over to my office and he was skeptical at first but finally gave in. I waited for him outside and and showed him my office which have no camera so he was relieved. Seems like fucking a bottom in his own office turns him on because he open his zipper and I dropped to my knees and I was expecting a average size dick. He pulled out a 8 inch thick cut dick and I held his manhood in my hand and admire it and he look down with pride. I started to suck it slowly to make it wet as possible. I finally managed to swallowed his entire dick after a few attempt. He pulled out his dick out of my mouth and bend me over my desk, he proceeded to pull down my pants and he was surprised to see me in a jockstrap. He put two fingers in my mouth and made suck it wet and he gently finger my hole. After me moaning and begging him to fuck me and he finally slide his lubed dick in me. I grabbed my desk and bite down on my hands because his massive dick is stretching my hole to the max but he seems to enjoy it. Eventually the pain was replaced with pleasure. I was moaning and he was very verbal telling me he own my hole now. He finally came in me and happily agreed to be his cum dump. He quickly get dressed and left but for the next year almost every week i would go over his house on my lunch break and let him fill me up with his baby batter.