This happened when I was sixteen.
There have been so many stories posted about happenings between cousins on here that I just wanted to add my two cents worth. Some have even commented about the number of cousin stories that are here. My point is that it must be a common occurance.
My situation must not be that unique and I'm sure is not as hot as some other stories posted. However it is 100% truthful and accurate. I actually had to convince my female cousin (age 14) to watch me. Although she was a bit hesitant and didn't act all turned on she must have thought it was OK or she wouldn't have allowed it. She could have simply walked away. I probably did it in front of her maybe about five times. I enjoyed being watched. One time I got her to show me her tits while I did it. She never showed me her pussy or talked about if she masturbated. After we stopped doing this we never spoke of it again. It's still something I think of to this day. I also wonder if my nieces and nephews have done this, as they are now at that same age. They certainly don't act like they do or give any hint that anything like that happens. Comments would be welcome.