Loved a lot in this, especially with the size difference. Owen and Caleb had enough character built in to make this a good story with them being a couple to root for. The drilling was very very hot.
What kept me from love loving all of it is the boot camp setting. Making them college students signing up for this felt unrealistic when it's usually something done to teenagers to try and strengthen them or break them down. Once you get over 18, I feel like you'd only get in this environment by enlisting in the military to go through basic training or being an athlete with grueling training camps for your sport. I know. I'm expecting too much for the setting and setup for an erotic quickie, but it just makes it feel more high school than college when it's intended to be very very adult.