Loving Cousins - Part 1

I have 3 girl cousins that are more like sisters to me, especially the middle one. She's 2 years older than me. We hung out each summer either in Southern California (their place) or in Western Canada (our place)
As is often the case, we always wanted to sleep together as kids. The summer I turned 12 she was 14 and it was one of the last summers we shared beds. The second night as we tucked into bed we hugged, then started to grope. I was behind her with my arm over her and my hands were under her flimsy nightie top. She had grown her boobs since last summer and I began to play with them, which she enjoyed. I also enjoy this as my growing erection revealed. It was poking into her ass and she reached behind me to do her own groping and I was really enjoying the attention I was getting. She lifted up to allow my bottom arm access, then moved my top hand down into her thin shorts to her down covered pussy.
This was a new experience for me and it was wet, warm and fascinating. I didn't exactly know what I was doing but she moved my hand the way she wanted and I was a fast learner. She allowed this fun to go on for about 10 minutes before she shuddered and bucked. I never got off myself, but each night we quietly performed the same ritual. She loved it and I also thought it was fun.
After that 10 days they went home and when we got together the following year, we had different sleeping accommodations that kept us apart.
When she turned 16, she met the fellow that would become her husband, so her attention was solely on him. I'm 99% sure that she's only touched 2 cocks in her life; mine and her husband. Things came full circle a few months ago...........