This is a fictional story based on fantasies of mine that are not based on any real stuff but the names and events in this story are completely fictional.
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Since I was kid I always thought that my mom was my biological mom until I was around 9 and I got kind of suspicious since my dad was 35 and my mom was only 25. My mom never really acted like a mom but more as a good friend. My parents finally told me the truth when I was 12 but nothing really changed between us and I continued to call her mom. My life continued the same until I was 18 with the occasional friends saying my mom was hot but I just played it off. It all changed on my 18th birthday.
I had known for a few years that my parents were trying to have a kid and I could always here their attempts at night but I always blocked them out and didn't think anything of them but I could tell that they were not succeeding and I felt bad for them.
It was my 18th birthday when my relationship with my parents and my life would change forever. I was about to go out and got to a strip club with my friend to celebrate my birthday when my mom walked in my room.
"Sam, can you come to our room for a second your father and I want to talk to you for a second." My mom said.
"Umm... Yeah ok mom, just give me a sec," I said being confused as to what they want.
My mom walked out of the room and I was left there thinking of why they wanted to talk to me for a few seconds before I snapped myself out of it and got my wallet and left for my parent's room. Once I got there I noticed both my parents sitting on the bed waiting for me.
"Come on in Sam," she said to me as I reached the door frame.
"Um ok," I said walking in slowly thinking I may have done something wrong that they found out about or something.
"Don't worry you are not in trouble," my dad said when he saw the way I was walking in.
"We just want to umm give you a proposition," she said as I walked up to the bed, "Here just sit down here," she said as she patted a spot on the bed and so I took a seat, "Sam I am not if you know or not but your dad contracted a genital disease not a STD a couple of years ago which rendered him sterile but we didn't find it out till last weekend and I am not sure if you noticed but before than we have been trying to have a child."
"Well I wasn't sure that you guys were trying to have a child but I um...well I certainly could hear you guys everyday day and night but I had no clue about Dad's condition and I am sorry to hear that you guys can't have kids," I said as I looked down to try and avoid their eyes.
"Oh woops ha-ha well I am um sorry you had to hear our um attempts at having a baby but we have found out your dad is sterile we have been thinking of different ways of having a kid," mom said as I looked up with both of them staring at me.
"So what are you guys going to do? Invitro? Adoption? Umm...surrogate?" I asked as I started sweating from the nervousness as they both stared at me.
"Umm well not exactly. Sam we have something we would like to ask you. I suggested this to your father and we have been discussing this since we found out he was sterile. I know this may seem weird and I would understand if you say no and are completely freaked out by this but we were wondering if you would mind making me pregnant." She said as look at me with hope almost making more accepting towards the idea.
"Wha...huh?...umm...mom I am speechless," I said as I looked straight at her in disbelief.
"It's ok Sam just take it in I know it must seem completely farfetched and that we are just pulling your leg but we are completely serious. I thought of the idea and told it to your father after thinking about it for a few days and he was apprehensive but finally accepted it. I feel since I am only your step mother we are not related to blood so I was thinking maybe with all the girls you are fucking you can take some time to have sex with me," she said with even more hope in her eyes.
"Well um mom I am actually still a virgin and have actually never even kissed a girl unfortunately," I said as I started to get turned on to the thought of their proposition.
"Oh well that kind of makes this better because it could also be a learning experience for you so that you can gain some experience," my mom said as it looked like she was starting to breath a little harder.
"Well Dad what do you think about this? She is your wife and I would feel bad doing this to your wife," I asked dad as I started to get convinced of accepting but wanted to make sure he was ok with it.
"Well at first I had apprehensions but your mom finally talked me into it and after hearing you are a virgin I think it will be beneficial for all of us," he said with I even think a look of excitement on his face.
"Well then if it is ok with dad then I am in. So what do you do first," I asked trying to hear my rising excitement.
"Well the first thing would for you to get undressed," my mom said giggling at my innocence.
"Oh ok mommy sorry I am new at this," I said as my hands shook as I started to pull my shirt over my head but was having a hard time.
"Here let me undress you then," she said as she saw me shaking.
She slowly slid over to where I was sitting on the bed and put her hands on mine and helped me steady them and get my shirt off. She then put her hand on my decently chiseled chest and pushed me back so I was laying down on the bed as her hand slid down my stomach to my pants and she slowly unbuttoned and unzipped my pants and grabbed at both sides and slowly pulled down my pants and my boxers releasing my what I my cock hitting her in the face.
"Oh my god mommy I am so sorry I didn't mean to do that," I said worried.