I hope this is the right forum for this question. After looking at porn Ive noticed that a lot of the guys in porn, when their dicks are hard, they fall flat against the belly of their owner when he lays down or even sits. And Ive also sometimes seen vids/photos when the guy is laying on his stomach, but his erect dick is pointing towards his feet, like its coming out between his legs, under the balls. My question is, how come so many of them have that type of flexibility of movement when their dick is hard. I'm asking because when I'm hard for instance, my dick doesn't fall against my stomach. It sticks out firmly and is uncomfortable to move up or down too much (nowhere near as much as the dicks of the guys I'm talking about). So how come they are so flexible? Cheers.