I love hearing about more unique things that turn people on. Maybe even things that aren't explicitly sexual but make you want to touch yourself and edge.

I dated a girl once who was obsessed with guys wearing only long white socks. It was such a turn on that she would immediately need to touch herself if I wore them or she saw a picture/video like that. Another girl would go feral if I wore wellies/rubber boots with jeans!

I have a few myself:

Pretty girls with a gap in their front teeth. No idea why but I find it so attractive! I always get hard when I see this. If there's a porn video with a girl like this, I'll have to edge to her.

When a shy girl let's go and gives in to pleasure. That moment turns me on so much. You can tell she is holding back at first but at some point the desperation takes over. Maybe she spreads her legs wider and opens her pussy lips for you. Maybe she begins thrusting her clit in your mouth forcefully, grabbing your hair when you are going down on her. 😍

More common but I get REALLY turned on when a woman gets horny and wet in public. Don't see this often but one of my ex's ruined her skirt on a date once. Teasing got her so wet she had soaked her skirt while she was sitting. She was so embarrassed but it turned me on like crazy. She had a long coat so nobody knew but us 😅