Disclaimer: Snape, Sinistra and all the wonderful characters of the HP world do not belong to me sigh. However anything that you read below that isn't in HP world has, in all likelihood, stemmed from my fevered imagination.
With a sigh that grew from the very soles of her feet, Auriga Sinistra cautiously peered through the thick foliage to the ground below. Her shoulders sagged as she realised that she couldn't really tell much from her perch high in the air. Around her she could hear the loud chirruping of birds.
She exhaled noisily and squirmed from side to side, trying to ease the numbness of her posterior. At this she felt a rather bony elbow stick itself, not so accidentally, into her side. Summoning her best glare, the one usually reserved for mass murderers, she turned to glower at the owner of the offending elbow.
She did not, however, expect her scowl to be met with a loud guffaw of laughter. She felt her cheeks heat, first with confusion, then with embarrassment. Schooling her features into one she hoped conveyed her annoyance, she became even more indignant when the guffaws turned into bellows of mirth. Severus Snape's body was shaking so much from laughing that he lost his purchase and would have fallen had it not been for an angrily extended hand from Auriga Sinistra.
The shock of having almost fallen somewhat tempered his amusement and he recovered enough to secure his seat. Turning to face Auriga the humour overtook him and he had to wipe the tears that were collecting at the corners of his eyes. Feeling a bit generous after her assistance preventing an ungainly tumble, he took pity on her and removed a bird's nest that had newly taken up residence in the tangle that passed as her hair.
Wincing slightly as a rightly incensed mother swatern pecked at his hand, he gently laid the bundle of twigs in a nearby branch before turning to face Auriga once more with a hint of a smirk on his lips and was greatly amused to see his colleague cross her arms tightly in a huff.
"Really Auriga, anyone would think that you were a twelve-year old."
Resisting the urge to stick her tongue out at him, Auriga decided her best response would to ignore him. After a few moments of pointed silence, she notched up a minor victory as Snape spoke again.
"Ah yes, the silent treatment, highly effective on girls aged about nine, but just sad when attempted by a fifty year old witch. Don't you think?"
Inwardly fuming at his age jibe, Auriga maintained her silence and was rewarded as Snape felt compelled to speak again,
"Anyway, you can't surely blame me for the bird nest falling into your hair, nor my reaction upon seeing you crowned with your own personal dawn chorus. Next you'll be telling me that it's my fault that we're stuck in this tree."
At the sharp look he received Severus scored himself a point, then added another to his tally as a look of frustration passed across her face as she realised her reaction.
Further point-scoring flew out the window as an unhealthy creaking sound reached their ears. As one they looked, first at each other, then at the bough joint, as the noise grew both in volume and pitch. Instinctively they scrambled towards the trunk, but before either managed to move more than a few inches, they found their support vanished beneath them and all there was to do was to yell out in an alarmed fashion as they hurtled towards the ground.
a/n: So is this worth continuing? There is more, but I'd like to know that someone's going to read it before I post… review! review!