Why do some men make enough precum to never need lubes during sex, and others ma!

Question: I'm one of the guys who has never had to buy a bottle of lube in his life. But I've been with other guys who seem to have no precum in them at all. What's that about?
Answers:
Biodiversity

Other Answers:
Practice makes perfect

i heard that porn star men take zink supplements to beef up the volume of ejaculatory fluid. i imagine other factors also figure in: how exited or turned on he is or dehydration

I think it a mine thing

Answers:

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Why do some men make enough precum to never need lubes during sex, and others ma!

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