One Slip Up Turned To 8 Year Relationship

We my husband son and I moved into our new home 9 years ago almost to the day. We get along great a with our neighbors who are close in age with a son as well that’s a year younger then ours age 5. About 9 months after moving in at a fourth a July block party and having a lot to drink I made a mistake and had sex with our neighbors husband. It was pure raw drunk one night stand sex. We agreed never to do anything like that again but a week later no drinking involved we let it happen again. Since then once or twice a week we have some alone time during the week since our schedules are flexible and we take full advantage of it. Except when kids were in the plan we both wanted to make sure my husband would be the dad. We took a break and shortly after being prego I was getting fucked daily My hormones where flaring and I was a nympho. While a short time later his wife had baby fever he got the treatment and was getting laid by her and me almost daily. Me with the same time frame as usual and her on her days with him. I know it’s weird but we both have very little to no feelings for each other. He likes how I fuck and I like his thick cock. I have always been very sexual and you throw a big cock in the mix and it makes it tough. Nothing like cumming with a huge cock my rear. I love my husband but he could use some size down there. He gets the job done but has to really work at it. My neighbor makes me feel like I will be ripped in half while cumming the hardest I have ever cummed. I’m talking loud vulgar comments coming out of my 5 foot frame. Yes I’m 5 foot tall weigh around 110 lbs. When he rests he fill’s erected cock on my ass while I’m on all 4s it sits almost to my lower back. I like for him to take pictures when he is balls deep in me so I can see. He laughs because the faces I make and watching a few videos we have made he does make my eyes dance and cross a few times. It’s a good set up and works for us. I love my husband he loves his wife we both get along as a family we just use each others parts.