The beginning of a [f]un summer for [m]e

It was the summer after I graduated from college; I was trying to figure out what my next step in life would be, when my baby sister brought home a few friends from undergrad. She was dating a guy on the track team, who came with a track friend in tow, and a few girl friends of hers as well. I was exceptionally cold to her boyfriend (older brother responsibility) but welcoming enough to her other guests. When they first arrived, I had a few other errands around the house, to which I needed to attend; however, when the group needed a lift to the beach, I was happy to facilitate. I needed to get out of the house, plus I was eying one of my little sister’s friends – Molly. She was probably 5’4” 110 lbs and sexy as fuck, curvy in all the right places. She seemed distant and mysterious, almost like a puzzle asking to be solved.