He second time I had the pleasure of the company of a younger sist of a college friend happened about a year after the first. A group that hang out regularly went to a lake house a few weekends a year. There was the usual college hijinx involved in these weekends, but rarely wee there hookups, as the girls were either already dating one of the guys, or just friends who initial hookups with others in the group had already come and gone. In any case, I was prepared to drink, eat and fish but not much more.
One of our friends brought along his sister, a recently 18 high school senior on her first weekend jaunt with a college crowd. She strongly resembled a young Anna Paquin. She was very intelligent and mature for a high school girl (qualities I was intensely attracted to and did not always find in many college girls) while also being gorgeous in a dark, brooding rebellious kind of way (also right up my alley).