User blog comment:27finnsprincess/The Talk About Marcy and Ice King.../@comment-24094060-20121012214801

This will be quite the episode. However...Marceline shouldn't be Betty. Ice King is into "younger princesses". BUT, Simon could be Marcy's true father (resemblance?) and Hunson could have taken her as his own. Also, the last idea would suck. It's the writers's way of saying "lol, we trolled this episode".