Hey! For them to be interested in you, you either need to flirt with and then apologize to the shark, or talk to the bat about something he's interested in and then once he's bigger ask to do something other than fight.
As for transformations, that's coming. In January's free version, there's going to be a cave where if you fuck someone there you permanently transform and there'll be a permanent werewolf transformation. Later there'll be a permanent dragon transformation and maybe more transformations if I have time to write more scenes.