New Story?

I had a story idea, but I'm not sure how to write it. Basically, I take relationships between characters and genderswap one of the characters in that relationship. For example:
Rarity + Fluttershy = Elusive + Fluttershy
Rainbow Dash + Applejack = Rainbow Dash + Male Applejack
Pinkie Pie + Twilight Sparkle = Berry Bubble + Twilight Sparkle
That's the Mane 6. Now you ask 'Why Pinkie and Twilight?' Well, They are the ones left. List of all other genderswap characters I'm using:
Prince Osiris
Gleaming Shield
Barbara
Sunset Glare
I won't post the Cutie Mark Crusaders until we find out who Babs Seed's friends she talked about in Apple Family Reunion are. Now there are so many ways this could be boring, but there are also probably way to make it good. BTW, instead of having Flash Sentry I would have Berry Bubble play that role. And yes, the royal wedding is a gay marriage. So tell me what you think with the comments. :)