Authos Note: So I may continue this and expand it a bit, but for now I like it. So if you want me detail later on... Maybe I'll give it. Although I rather like the idea of leaving what Severus did to the imagination a little bit. Hope you enjoy this as much as I enjoyed writing it.

...

As he stumbled through the oak doors, briefly wondering how he got there, Severus decided that it was time for a bit more wine. Christmas wasn't one of his favourite holidays to say the least, reminding of the family he could have had; if he had made different choices. And so he found himself at Slughorn's party a little bit more drunk than he'd first thought.

"Ah well, no one will notice." He thought, leaning on a second years head for support.

He took a moment to take in his surroundings; noticing the brightly coloured Christmas trees scattered around the room along with an alarming amount of mistletoe floating around above the students and professors heads. In the corner an old radio was belting out a muggle Christmas tune with a Professor standing next to it humming tunelessly; although the man looked around two centuries older than the radio, Severus couldv'e sworn he'd never seen that man before. Upon closer inspection, Severus realised that it was the Headmaster himself; pushing his way through various students was easier said than done but soon Severus was standing and mostly listening to Dumbledore talk about God knows what. McGonnigol maybe? Ah who cares, all Snape was interested in was the vast table of drinks he'd just spotted with a rather large person laying atop it.

Gracefully tripping over the welcome mat, he made his way towards the drinks table where Slughorn was currently taking a nap. After that the rest of the night seemed a bit of a blur...

The Next Morning

Severus walked into Dumbledore's office after gingerly knocking on the door; feeling like several pianos had been dropped on his head with each step.

"Please sit my friend, I'm sure this has been a tiring morning for you."

Severus grimaced in reply. A soft chuckle breezed its way past the old man's lips.

"Horace sure knows how to throw a Christmas do, though I dare say there was far too much mistletoe in that room."

Snape was waiting for Dumbledore to surface out of his daydream, when the headmasters face turned beetroot and muttered something that sound suspiciously like 'McGonagall' and 'locked classroom.'

'Ahem, did you enjoy the party?' Dumbledore asked with a knowing twinkle in his eye.

'To be honest sir, I remember talking to you and that's it.' Said Snape.

Dumbledore raised his eyebrows, 'yes I'm sure the majority of the partygoers wish they felt that way too.' He pressed on as Severus' face grew curious.

'I do believe you and Horace sang a duet of 'I need a Hero' to great applause, then you proceeded to, as the pupils seem to call it, moon the entire party. We also saw your underwear.'

Throughout his speech Severus' face had slowly turned from red then rather quickly to white and sickly to the point where he was almost green.

He wandered slowly back to his bedroom, taking care to lock the door behind him and headed straight to his chest of draws. Pulling open one of the draws and viewing the offending garment; the reason his fearsome reputation as a cold, evil man was now in tatters.

The Hello Kitty boxer shorts stared back at him, smiling like a cat who got the cream.