Watching Porn With Sister II

My brother and I are hanging out in the living room when Mom and Dad are away on a work trip. My brother insists in watching boring Sports-Pro Channel 5 so I'm watching some movies on his iPad. I found his folder titled "secret" and I'm watching the clips in awe. It's so cool to see porn stars having sex, there's a lot of enhanced boobs, huge rod-like penises, wild thrusting, golden blonde hair flipping, squirting, cumming, gooey-wetness, but is this how people have sex in real life? Do guys really have big penises like that, regular guys, I mean?