Twice the Difficulty; one I am working on now about Sonaze conjoined twins that don't get along. I am having trouble trying to come up with a plot around it

Sonaze honeymoon cruise is stranded in the ocean (survival story basically)

A drunken one night stand impregnates Blaze, and a reluctant Sonic stays and eventually falls for her (I have my doubts because it seems unoriginal to me)

Sonaze struggle to raise a child with a mental or physical disorder (i.e autism, Downs Syndrome)

Blaze falls into a depression. Why? What is going on? Sonic stays to try and scrape out the answer

Creepy mannequin story (a neglected Halloween idea)

Sonaze, Tailrine, and Lightlice go camping. Their fun time soon becomes a struggle to survive (another kind of cliche story)

Sequel to Disturbing Deposit: Lucy causes Blaze to be submitted to the mental hospital!

OneShot of another couple (I am thinking of ShadAmy or Shadouge)

Sequel to an already existing story? (ie Beauty and the Beast--it received a lot of positive feedback, however how can I make a sequel?)