It all started when I was about 6 months pregnant. My husband and I always had a very active sex life but around four months it started to be too painful for sex. I kept him supplied with blowjobs for the next month but I started getting nauseated during those and that came to a halt. I gave him hand jobs but I knew he wasn't satisfied and I was disappointed that I couldn't please him. I didn't think he would cheat on me but being in our early twenties he had a very high sex drive and had ran out of things to try.
We lived with my mom and dad and they had the opposite relationship in the sex department that Tyler and I had. My dad drinks a lot..a whole lot. By bed time he is usually passed out on the couch and no good to mom in the bedroom. Our house is really small and there is not much privacy. I can only remember hearing mom and dad having sex 3 or 4 times in the last 3 or 4 years. I shared everything with my mom, so she knew all the facts about the lack of sex between Tyler and myself. She actually started telling me about the lack of sex between her and dad, something she had never shared before.
At some point during the conversation without fully thinking I made the comment maybe her and Tyler should sleep together. Mom looked at me and responded yeah maybe we should. After a few moments of silence, mom asked if I was serious. I told her that I would rather him sleep with her than cheat on me with someone else. Mom said it would be nice to have a real cock instead of a battery operated one. I told her I would talk to Tyler about it to make sure that there wouldn't be any weird feelings about it and that it was just sex only. We hugged and she said she was nervous but excited about it as well.
Mom and I really didn't look anything alike. I was five foot ten and really thin with 34d breast and blonde hair. I didn't have much of a figure really but with long legs and big tits I got my share of looks. Mom was about six inches shorter same colored hair and even though her breast were only 36c she had a nice body with a really great ass. Tyler had remarked before that if I had my mom's ass I would have it all.
As Tyler and I laid down for bed that night I swallowed the lump in my throat and told him what Mom and I had discussed. His first reaction was "you're joking" to which I assured him I wasn't, he then accused me of setting a trap. I finally told him the whole story and why it was ok for them to have sex. The only rule was they couldn't have sex without me being at least in the house and they couldn't tell each other they loved them. He agreed with everything and said he was nervous but excited too which I replied "I've heard that before"
Dad had planned a trip for the following weekend so he was going to be gone from Friday morning until Sunday night so the timing couldn't have been any better. I had made the decision not to be in the same room as the two of them, but decided I might peak thru the door. Mom called me into her bedroom and asked if she could wear something sexy that she didn't get to dress up any more. I told her Tyler would like that and I would let her know when he gets out of the shower and turned and left the room.
As I walked towards our bedroom Tyler came out of the hall bathroom. He had just finished his shower and was still naked. He was a couple inches shorter than me, stocky built with brown curly hair. He had a small amount of hair on his chest than ran down in a treasure trail to his cock. His cock is only six inches long but it is thick, real thick freakish thick. My pussy started tingling as he stood there completely nude. I hadn't seen him like this in a couple of weeks and I was horny for him. I told him to go on in the bedroom that mom had a surprise for him. He pulled me to him and kissed me as he ran his tongue deep inside my mouth, his cock got hard as I squeezed him tightly. I was really horny and jealous of the two of them now.