oral sex with my sister

On leaving school I arrived home to be told it had been arranged for me to go and stay with my Aunt and two cousins down in Devon at Plymouth, the girls were 16 and 17 and the family lived in a small Hamlet. My folks were off on a well earnt holiday and it was thought here was great for me at the coast with the girls and the beaches to keep us busy for the 2 weeks. I was ok with that, the girls were good fun and Vicky the younger was always laughing Betty the older was a little more of the thinking type so all was looking good.