If you don't want an actual date to the ball or a quick screw, but you do want to know you'll have someone to dance with so you don't look like a right git hovering alone near the buffet or having to talk to the date you do have - who, let's admit it, you possibly should have picked based on personality rather than how fuckable they look - this would be the place to arrange it. Give us your name and a half-way honest assessment of your ability to stay off your partner's feet.