One day while I was home doing some cleaning, I realized that what I needed was underneath the bathroom sink. Since I was in clean mode I did not hear the shower running so when I opened the door, I saw my step-son Richie who is 18 years old standing their completely naked. He also was playing with his big dick, stroking it. He did not even notice right away that I walked in cause he had his eyes closed. I just stopped and was surprisingly interested. Richie was tall, lean and was shaved everywhere, he had a swimmers body. While was briefly staring at this young stud big dick, I did not notice that he already opened his eyes. I looked at him eye to eye and he told me with a little smile you like what you see. I was shocked at the comment.
I then took a step back and to my surprise the little horny fucker, was still stroking his monster. He then said again to me do you like what you see. I said "shut up" and then he said to me "you know you like it" I could not help it but I could not take my eyes off his dick. I licked my lips without even realizing it and he said "yeah, I knew it". He then reached behind me closed the bathroom door, put his hand on the back of my head and pulled me to my knees. I did not know why but I allowed. I could not understand what the hell was going on I was like in a spell. He was in complete control and he knew it.
He then ordered me to grab his monster and I did without question. As I held his dick in my hand it felt weird holding my step-sons dick let alone another man's cock in my hand beside my own. I then grabbed it tightly and he said "yes, hold it tight". He then started to buck his hips back and forth. He was fucking my hand. He did this for a while, when he stopped looked down at me and said put in your mouth. He then bucked forward and his dick was right by my lips. I did not do it, so he grabbed his dick out of my hand and rubbed it on my face, when I tried to pull away he grabbed my head. The smell of his dick on my face was great I then opened my mouth and started licking his shaft. He then put the head of his dick in my mouth and I eagerly sucked on the big head. I then wanted it all in my mouth so I tried to put more in my mouth when he held it back on purpose. I grunted like a cock hungry whore, when he said "yeah, you're a little cock sucking bitch aren't you, tell me you want it or you don't get none." I then told him I wanted it. He said beg for it, I then told him to please let me suck it and called him papi. He told me alright but your going to take it all and I just agreed by nodding while.
I grabbed his cock put it in my mouth and tried to swallow all of it but started to gag with only half of his 9 inches in my mouth. He then slapped my face and told me to relax my throat and watch the teeth. I could not believe that I was getting taught how to suck cock by my 18 year old steps-son. After about 2 or 3 minutes I was able to relax my throat and his meat began to slid down. I knew I was deep throat it when I felt his balls on my chin and he said dam you're a natural cock sucking whore aren't you. My girlfriends can almost never do what your doing. He then started to pump his dick in and out of my mouth with his balls slapping my chin. I was taking his big monster like a cock sucking champ. He then grabbed my head and held it and without notice began filling my throat with man juice. I swallow it like it was nectar from the gods. He then was pulling out and still cumming filling my mouth so much that it started cum down the sides of my mouth. His cum tasted so good I could not ever understand why women don't like tasting it.
I did not even notice it but I came without even touching myself. I did not want to let it out of my mouth but he pulled it out and said that it was real sensitive but don't worry I have plenty of time to suck it. He then told me to get out cause he was going to finish his shower so he could go out tonight. He then told me hey this is our little secret you little cocksucker as long as give me head whenever I ask, do you understand! I just nodded and could not wait to do it again. He ordered me out and then I realized what I just did and could not believe it, I was a safe heterosexual man who never thought about another man ever and walked out a cock-sucking whore. I could not wait till next time I was like a junkie and could think about anything else. I waited up for him to get home at four in the morning. When he walked and saw me he knew what I wanted and started to laugh. I don't know how but for the past year I have been his cock-sucking, sperm bank whore at his request which is about once or twice a day and I LOVE every minute of it.