Most of us have little things that may not seem like a big deal, but are huge turn-ons. My ex, for example, would get instantly horny when she saw me undoing my belt. Not undoing my pants. It had to be my belt and nothing with a big buckle. Actually, it could also be me putting my belt back on too. There was just something about that particular thing that triggered all of her lust. I remember her practically jumping me after the scene in Wanted where James McAvoy walks into the frame shirtless and fumbling with his belt. I will always love that movie because of the sex it got me.
My thing is girls looking back over their shoulder in invitation. No words, just a look that says “permission to fuck.” Look, I hated Euron GreyJoy in Game of Thrones just as much as everyone else did, but when Cersei looked back at him, and he realized he was going to get to bang her, I was rooting for him.
In real life, these looks rarely happen. Maybe that is why they stand out to me so much. Stunning 18 captures it perfectly though. This picture from their site is perfection. Use this $20 discount at Stunning 18 to see more of this model, and that come hither look in her pretty eyes.