When I was a kid, I downloaded Grand Theft Auto from g'nutella (kazzah). To avoid fakes, I usually downloaded the biggest version.
Well the reason this one was bigger than the rest was because there was a video file buried somewhere in the game's directory structure. The video was Debbie Does Dallas, the next generation.
Besides that one time I pressed 'play' before 'eject' on the VCR and stumbled on my Dad's porn, that was the first time I watched porn. And I watched it a lot. It taught me that promiscuous sex in college stairwells is normal and that most college women dont wear panties under thier short skirts.
Its one of the reasons I strongly believe that we need to teach kids about consent and sexual norms at a very young age. Otherwise they learn fucked up things from pornos.