Female Cousin

My cousin and I are now 23, and 24. She is a year older. When we were pubescent we explored each others bodies, leading to plenty of time naked together. We felt each other, sucked on each other, watched each other grow into developed teens. We had our first oral (both ways) together, first fuck together and first buttfuck together. We avoided pregnancy by sheer luck, though we did way more oral and anal sex to keep it from happening. Still I dumped a lot of cum in her pussy growing up.

At driving and dating age, we always met each other outside our houses, so we could go on dates and off to a notel motel to fuck. We would arrange mutual vacations together with parents knowledge. The parents didn't think anything about it, as we grew up together, but when we'd get in the hotel, we shared the same room and of course the same bed.

I went away to college and again with parents approval, she moved to the same city and moved in with me (to save money) while she worked. Most of our friends thought we were a married couple because of our last names being the same.

Now, we are still together, and yes we have dated others in our late teens, we have had sex with others, we knew we had to try to get away from each other but we can't.

We are first cousins, we have no intention of having children, we are basically married to each other, though threesomes of FMF and MFM variety do occur occasionally. The parents now are pretty well in the know and don't like it at all, but what can they do? What they don't know is sometimes her younger sister - 20 now - joins us. The sister was the first one we were open with about our relationship. She came to stay at our place for about 4 months and we just told her about it.