Don't keep me waiting

He hesitated one more time.
Clothed in invisibility he gave the password he had been given; sneaked in towards a Common Room that was vaguely familiar. He had seen it once before. He followed the directions he had been given.
Finally he found him in the dorm where he was supposed to be. The other was already waiting.
"What took you so long!" he sneered.
A flap of invisibility was lifter up, a foot showed. The blond haired boy dived under it and straightened himself.
"Never keep me waiting again, Potter!" he said before planting his mouth firmly on Harry's!