A/N: The first category is Sprint - write whatever you want, whoever finishes first gets the most points.
Dear Lily,
my dearest, dearest Lily. I met your son today. He looks so much like a miniature Potter that it almost made me vomit. But he has your eyes, your wonderful, lively, sparkling eyes. Oh Lily, I know what I said to you was wrong, but why did you have to dismiss all the good years before that, and worst of all, marry that Potter? I would have looked after you, and then you'd still be alive and it would have been been our son in Potions today. You were always so good at Potions Lily, so naturally I would have high expections of your son. However, it seems he has Potter's lack of finesse for the noble art, alas. His presence opens wounds that have never quite healed. I wish you were here Lily, not a day goes by that I don't miss you.
Always,
Sev
P.S. There's also a Muggleborn girl, who reminds me of you, because she has your annoying habit of trying to reach for the moon every time a question is posed in class.
Severus looked at the letter and then tore it to pieces, which he threw into the fire. He watched as the flames consumed the parchment, until naught was left but ashes. It was dangerous to put these kind of things to parchment. The Dark Lord may be dead, but Severus had a feeling it wasn't over yet. He took his Pensieve from his cupboard and set his wand at his temple. Long, silver threads formed and he let them fall into the Pensieve, one by one, every single thought of Lily, and Potter, and Lily, and that boy of theirs, and Lily...
He fell into his chair afterwards and wondered how much longer he needed to go on like this. He had discussed it so many times with Albus, and everytime the old man had convinced him to continue playing his part. That more than anything convinced him that maybe the worst had yet to come. He decided that he needed to stop writing her letters that would never arrive, or think about her for that matter. If the Dark Lord returned and found out that he'd been loving Lily from the moment they first met until long after she was gone... He shuddered at the thought of what might happen. He needed to forget about Lily. He needed to treat her son with as much contempt as possible - not that that would be difficult, the boy promised to be as much a pain in the ass as his father had been.
Treating the boy with contempt might be easy, but forgetting Lily was something he knew he could never accomplish. So there was really only one option left: he needed to become the best Occlumens this wizarding community had ever known, and pray that that would be enough. He stood up. He was a fairly good Occlumens already, but he still had a long way to go.