If you think there is already an exaggerated depiction of cumming in straight then what more in gay porn? In gay porn, you can already expect lots and lots of cum since this is basically a sausage party-too much penis in one clip. In straight porn, it is obvious that there would be loads of semen in the video because after all, straight porn is mostly for straight men trying to project their arousals on the male porn protagonists. This semen that desire to be out in the open, want to scattered in one's insides, or one's ass or one's face or mouth.
The end goal is the same-being able to release these loads of male hormones. When we talk about sperm porn, we talk about the semen-orgasm, about cumming, which are all the point of actually jerking off and having sex.
