Surrounded by unsighted people deafened to everything but their music, and surrounded by darkness, it would have been hard to notice what they were doing to any but the most perceptive observer.
Aaron was already struggling to control his desire. He put his hands on her hips and spun her round fast, lifting the back of her dress to her slender waist and sliding her negligible thong to one side. She bent forward slightly and closed her eyes, waiting. She felt his erection touch her most sensitive flesh and push inside, his hand still on her hip and now another wrapped around his length, guiding it inside her. With one agonizingly slow motion, he pushed inside her, forcing a growling moan from through his clenched teeth and sigh of relief from her lipsticked mouth.
Once her body had fully accommodated him, he removed his hand from his cock and slid it up the front of her body, over her breasts and up to her shoulder, gripping her tightly from behind. She began to grind down onto him, both standing almost completely upright now, wriggling and writhing her body like every other dancer in the room, but with the sensations of sex vitalizing them, separating them from the mass around them.
Cara slid her hand between her thighs and teased her clit while Aaron firmly but slowly slid deeply inside her, the heat of the other bodies warming her, brushing against her, close enough to touch but entirely distant too.

“OH GOD YOU FEEL SO FUCKING GOOD” breathed Aaron. “I’M ALREADY CLOSE.”
“CUM FOR ME,” she replied without inhibition. “LET ME FEEL IT.”
She teased her clit faster, harder, bringing herself to the edge in time with Aaron’s fulfilling thrusts, her muscles massaging him inside her as her own climax began. Her knees felt like they would buckle as the convulsions of her pussy brought on Aaron’s orgasm too.
He threw his hard back and roared, squeezing her body against his own as he came inside her for several long, desperate, primal seconds. Her orgasm began before his and finished after, her body tense and his softening, her own involuntary groans mingling with his in the air above them, dozens of people still dancing around them none the wiser.
Eventually, after enjoying their union for some time, she slid off him and smoothed down her dress. She turned and they kissed, swaying together in the afterglow.