Take the third option. Accept the consequences.

Petunia married a biochemist, and Harry grew up reading science and science fiction. Then came the Hogwarts letter, and a world of intriguing new possibilities to exploit. And new friends, like Hermione Granger, and Professor McGonagall, and Professor Quirrell... COMPLETE.

Kirk has been awake for ninety-six hours. He's pushed past his limits and is about to collapse from exhaustion. They saved Earth, they destroyed the Narada. Now they just have to make it home. A friendship fic.

Sarah is just like any other 21st century teenage girl. But when she suddenly finds herself in Camelot, everything changes. What will she do when danger seems to lurk around every corner, just waiting for her? Secrets are revealed, and strengths are tested. But can all of this possible end well for her?

When John heads overseas for a week, Sherlock's forced to fend for himself. It goes about as well as anyone could have anticipated. Which is to say, very, very poorly. Don't worry, things'll be fine in just seven days.

Sherlock drags John along to Christmas dinner with Mycroft and Mummy And "Anthea", too . Over the course of the evening, John realises that everyone in the room - apart from him - seems to think that he and Sherlock are a couple. Shenanigans ensue.

Humorous one-shot about what Cas and Spock would talk about if they ever met. Slash, Cas/Dean and Kirk/Spock implied. AU where no explanation is given as to why they are in the same century, it's not important for the fic. Don't read if you don't like.