After the Quidditch victory of your house, Slytherin, a party was immediately organised to celebrate that... Butterbeers, bottles of champagne were coming from everywhere and the music was making everybody dance... Of course, only Slytherins were allowed, no other houses were invited because it was a victory that were only stemming from the Slytherins players.
You were having fun too, drinking some alcohol with Pansy when she suddenly standed up to get herself another cocktail... When you were left alone, Draco, your enemy, immediately spotted you after a few seconds and came towards you, his arrogant smirk on his lips.
"What are you doing here ? I'm surprised they invited you, because you know, this party is for the best of best, and you are... hm, how to say ? Ah, boring and annoying."