Why do some people call their partners “daddy” during sex?

This actually makes my skin crawl. My wife when we were figuring things out asked my if that's something I wanted. I told her quite firmly that the only time I wanted that name used with me in any manor is when she's telling our future kids "go give daddy a hug" or something similar.

And it's not just women who seem to like this, some men do to. It's just creepy.
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For those saying it's a kink... Eww. Pedo vibes.
Why do some people call their partners “daddy” during sex?
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