Fourteen years ago Cosima Niehaus lost her childhood sweetheart in a tragic accident. Just when Cosima thought her life couldn't get any stranger she bumps into Clara Oswald, a woman who looks exactly like her old girlfriend, sending her off on a trip down memory. Her first instinct is that Clara is the result of another cloning project. If only the truth was that simple...

Clara has downloaded a dating app called Sapphire, and, with the encouragement of her best friend Nina, she arranges to meet an attractive scientist at a bar in Central London. Clara gets to the bar and suddenly gets cold feet, deciding to leave, when her date arrives... This is a shameless crossover indulgence between Doctor Who's Clara Oswald and Orphan Black's Cosima Niehaus

Delphine dies and Cosima becomes depressed until she meets the doctor they begin to travel together but Cosima has one mission in mind to save Delphine , she meets past versions of her along the way and instantly learns at the end the truth behind loving all of one person

Clara Oswald. An impossible woman. The Doctor met her twice, once in the past, once in the future, and she died both times. Why does Clara's face keep showing up across all of Time and Space? And why do they keep dying? Warnings for suicide, canon character death, and possible depictions of violence and death to come. One-shot, with possible short story segments to come.

Jennifer Fitzsimmons finds herself enamored with the new teacher at Sheldon High, Clara Oswald. The two become fast-friends but Jennifer is surprised to find herself feeling a deeper connection. A 10-Part Fitzwin Crossover.

Completed One-Shot. I think of it more as an Orphan Black AU than a crossover but here you go: A short story in which Cosima is The Doctor and virtually everyone is gender-flipped. (Starts out on Bad Wolf Bay) NOTE: whatever Ten/Rose had Cosima does not feel that way about her companion. Also Sorry if it comes off like a crack-fic, it's just a quick thing I did for fun.

Cosima, Sarah and Alison are trapped in a parallel universe while the Doctor works to bridge their worlds. Time Lord technology has somehow been stolen and tampered with in this parallel world. Clones are made and memories are beginning to resurface. They have to race against the clock to restore the universes as they were before chaos rips the fabric of time and space