So we can agree cucking does exist, and it's a powerful drive. I've even experienced it for a short while, though I got over it.

Why are we wired like this? ? It seems very destructive to a family or your genetic lineage. I have a few theories:

1) last cock wins: Stronger alpha males raid your village and rape your women. You're cowering and hiding, watching the big man turn your wife out like she's never been fucked before. The roughness of it is making her cum so hard she's going to ovulate early, so she's going to get pregnant. You're diamonds, and ready to go be sloppy seconds the moment he leaves.. with your penis shaped to scoop out his superior sperm, giving you a chance of saving her womb for your genetic code.

2) You are a weak male, sex with your wife is never good due to your lack of ability, so she's always horny for more and you can't provide. At some point she snaps and starts fucking the blacksmith's son, you find out, and instead of being angry and perhaps murdering him and her like a chad, you instead get aroused and enjoy the fact that she fucks other guys - and you stay around to provide for her kids like the cuck you are.

any others?