why does hitting someone give me an erection

That's normal. It's actually why boxing and UFC exist. The reason they wear cups is because it wouldn't be TV appropriate to have their erections flopping all over the ring.

>>18096322
Fun fact: in Ancient Greece, the Pankration fighters fought naked with raging hardons the whole time. Once the winner subdued the loser, the tradition was to further demonstrate dominance by fucking the loser in his ass while he still was in whatever lockdown position subdued him. It's also why Gaul elite earriors fought wars naked.

TL;DR: Martial arts have a ~4000 year history of gay sex.

>>18096403
One could argue popping a boner while hitting someoen is a physiological reaction that evolved to make defending one's family that much more pleasurable. Too bad it can also create problems like wifebeating and general violence. It can also lead to extreme BDSM fetishism.

>>18096403
>>18096322
So, what you guys are telling me...is that beating the shit out of people is a great sexual, emotional, and physical release?

And that just martial art's training (on offensive power, anyway) is a weirdly modernized, more media-friendly form of BDSM or sexual-torture?

Honestly, that explains a lot. Even boxing, where the guys risk getting their skulls fucked-over.

>>18096416
Yeah, that's the gist of it. Just have self-restraint and use this evolutionary desire to fuck people up only on your enemies/things that threaten you and your loved ones.

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>>18096318
That's totally normal anon, I wouldn't worry.

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>>18096415
>>18096403
>>18096322
And here I was thinking old school trolling is dead.