It's a matter of experience. If you're a virgin, it's not uncommon that you're a bit confused about where it is exactly (most men - if they make a mistake - aim for the pussy a bit too high the first time), and experience from viewing porn is not so helpful when you're based just on touch. If you have such a problem when you're preparing to penetrate, I recommend (gently) searching downward for the lower middle of the pussy lips with your finger, then aligning your cock with the finger and removing the finger. It's not distracting from what's about to happen.
As for the denim question, I don't understand. If she has clothes on, you're just rubbing her crotch area. You can't apply finesse through her jeans so it doesn't matter if you're in "the right place".
As for the denim question, I don't understand. If she has clothes on, you're just rubbing her crotch area. You can't apply finesse through her jeans so it doesn't matter if you're in "the right place".
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