Monsoon (2017)

For two best friends who grew up right next door to each other, they mostly knew each other as kids having play dates up until high school when they started getting the hormonal hornies for other classmates.  Well, like any long term friendship between a handsome dude and a hot girl, they begin to wonder "how come WE never hooked up with each other???" So during an especially hot Monsoon season in the Arizona dessert heat, these two begin to spend a lot of time in the swimming pool and eventually ask each other what would they do if they did "hook up".  Welp, it just so happens that a tragic car accident rips these two besties apart for good, as Sarah (Katherine Hughes), doesn't survive the car wreck that John (Austin Lyon) and her get into.  That doesn't mean that they are forever separated, as John ends up seeing his best friend Sarah as a very vivid hallucination for the rest of senior year!  He's of course coping with the guilt of the accident, trying to get his mind off things, but the haunting hottie from next door is popping up at unexpected times and trying to help him make his way to the Ivy League school he was accepted into.  Along the way though, John meets to rebellious party girl with the heart of gold, Caitlyn (Yvette Monreal), who brings him out of his shell a bit.  So the amazingly sexy Austin Lyon spends his summer vacation with his ghost best friend and his new girlfriend, all of which is spent shirtless and partying.  We get why Sarah would come back from the dead for that body and why the party girl Caitlyn is after him too, he's not just hot, he's Arizona hot!