questioins in Adventure Time

Share your creations!
At what point did the series begin to mature?
Personally I think it was sometime in season 5


I have two simple questions about Peppermint Butler:
1. does PBut like Ice King's fanfictions?
2. who is his favorite gender swap?
Finn and flame princess didnt work out
It would never work out at all, flame princess loved finn but he betrayed her
And if it did work out, how would they fuck?
Either Finn dies or flame princess melts through the bed

Can yall help me with this shit?

Is this really finn's arm? I think it is.