Slippery Jack is a mushroom-themed Affini, in the Human Domestication Guide genre of TF smut. I know that fungi aren't really plants, shhhh....

Anyway. Slippery Jack is a monstrous, dryad-adjacent alien. He wants nothing more than to have a floret of his own: a domesticated human pet, because he thinks they're cute and interesting.

You can be any gender - I've written it so that you're a pilot who crash landed in his swamp, but you could also be someone who was on the ship for other reasons. The only thing that really matters is that you were on a ship, you are human, you are from Terra (Earth), and you are being forcibly domesticated and cared for by a giant bear of a man.