Quit Bitchin' and Fuck Me, Dude!

The Adult Time Series tells convincing stories of straight guys turning gay for their best buddies even as they are in denial, shown via gradually escalating exploratory sex acts that start with "totally not gay" side by side masturbation that eventually turns into more as they convince themselves and each other using flimsy excuses to justify their curiosity. They always end up saying, "Quit Bitchin' and Fuck Me, Dude!"