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When I hear the phrase "pickup line," I think of men wanting fleeting fun and a release of the pressure in their gonads.
When I suspect that's what someone's after, my guard goes up instantly.
"Pickup line" sounds a bit like a fisherman baiting his hook.
The fish does not want to be caught. It does not want to be the object of someone's hunger.
If a fish has been caught once and been lucky enough to escape and heal,
it will be wary whenever it sees another hook, no matter how tempting the bait.
Assuming that there are a few women who want pleasure without consequences (not even sure if that's possible)
I think the best approach would be open and honest, something like,
"I find you attractive and would love a quickie. How about a cup of coffee?"
If she agrees, then during coffee, you get the chance to find out whether there's a chance of being able to meet each other's needs.
If you're not honest, somebody will get hurt.
If you want something longer and more meaningful, trying pickup lines is unlikely to be the best way of finding a partner.