Coconut Oil for Lube?

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I was just reading a different post where a few people recommended coconut oil as a lubrication during sex. So this is a thing?? I don't use lube often (I only have one bottle of durex and HATE the sticky residue).

Are there certain types of coconut oil you have to use?

It's safe/harmless to enter your vagina?

Does it keep things, well, lubricated during sex?

Are there any side affects?

I'm a little perplexed by this information haha 😅😅