Her boobs

You slide your hand up Kate's curvy body, feeling her soft stomach and pressing the back of her head against your face.

"You look so fucking sexy tonight," you whisper in her ear.

"Don't I always?" she whispers back.

You can't argue with that. Instead, your hand slides up even further, tracing the lines of her breasts through her dress until you're cupping her breast in your palm. She coos at your touch, pressing back against you even harder. You feel like if she grinds against you any more than she is now, your dick will be fully between her ass cheeks, jeans be damned.

You tenderly squeeze her breast, careful at first. She stiffens when you do and you fear that you've gone too far, but it quickly becomes clear that she wants more, not less. You squeeze a little harder, your hands tense. You kiss her neck there on the dance floor, groping her and pressing your cock into her ass.

"Fuck, Andrew," she mutters. "Where've you been hiding this?"

The other dancers are close to you, grinding and jumping and moving to the beat of the music, but it feels for a second like you and Kate are the only ones in the room. She breathes heavily and you can feel it as her chest swells against your hand. Her ass presses back against you, her soft hair back into your face.