The Night I Took My Cousins Best Friends Virginity On The Roof Of A Dock [Long] (m/f)

So a little background, My cousin and I are really close despite her living a couple states away. This week we decided we were going to turn up at her lake house with a bunch of friends.Immediately curiosity made me ask if Ali would be there. A question my cousin was used to me asking as Ali and I had a history of being flirty and making out a few times but never following through due to either us being young (10-12) or one of us being taken at the time.
Grace (my cousin) confirmed Ali would be attending so naturally I mentally prepared myself. This would be the event I would close the deal
Upon arrival the trips hype was a little exaggerated as we soon realized the guy-girl ratio would be 5-2. One being my cousin, and the other being the equivalent of the greased up streaker from Family Guy who would never be caught. But this wasn’t what demoralized me. I soon found out Ali had been seeing a guy who would be arriving the next day. I soon drew to a conclusion that sexually, this three day trip would be a dud. Nevertheless, we were all close friends and I was ready to do some drinking.