Never has he even considered that this might happen one day. Not to him! He wasn't exactly what one might call handsome or even smart. He was just a normal man, was he? This couldn't have happened! But it obviously enough has... Maybe it was a joke? He laughed. Yeah, that'll be it. A joke. Some kind of idiotic prank somebody dared to play on him.
He just stood there, holding the proof of the mischief in his hands wondering who could be responsible for it. One of the girls? But then again...no. They wouldn't dare. Come to think about it: Nobody actually would dare that! But somebody clearly has...
There he was, musing about some stupid piece of parchment. Why couldn't he just ignore it? A little voice inside him whispered: 'Maybe because you don't want to ignore it...You don't want it to be a joke. So, what if it isn't?' He sighed. He would never be sure if he continued staring at the small, neat handwriting whose message seemed to be so clear, yet not clear enough for him. Could his deepest wish have come true after years and years of dreaming?
Again he sighed and finally made a decision. At least he would try. What could he possibly lose? 'Nothing', he answered himself and made his way through the crowd of students towards the astronomy tower, putting the parchment carefully in the inside pocket of his robes, letting the words written on it running through his mind again and again: "Be my Valentine. Meet me at the top of the astronomy tower tonight. Love XXX."
The wide honest smile which could be seen on the face of Professor Severus Snape as he almost ran out of the Great Hall after dinner scared some students literally to death and those, who were still far too stunned to even react were pushed aside seconds later by another teacher whose smile was even wider and happier but it was not as unexpected as the potion's teacher's.
When finally the headmaster got to his feet and decided to calm the students, already half of them had fainted because of shock. They'd better get used to the image...
On top of the astronomy tower, meanwhile, two happy men made their true love vow and were happier than ever before in their lifes...