1.) A modern take on the Tarzan story, I'd like to play someone who was lost in the jungle or the wilderness only to be discovered and brought back to civilization after extensive searching by his/her wealthy family. Your character can be a scientist or an explorer or maybe just a random member of the team that discovers him/her. Depending on the motivations of who finds him/her, this one could go dark and I'm perfectly fine with that. I'm happy to play this either het or slash.
2.) An alien crashes to earth and is discovered by the US government. She is promptly taken to a research lab to be studied. Your character can either be a scientist tasked with experimenting on her, a soldier who is guarding her or a lab worker. I would like this one to go dark with the scientist having darker intentions, whether played by you or whether your character is opposed to what they're doing. Dark themes, medical, potential impregnation in this one.