Hengist
Hengist loves girls, loves to look at them and can barely contain his passion. He is a mostly good-natured boy, but his irony is that he is hideous, that no maiden would even give him a second glance. He has short stubby legs and long strong arms, and his face leaves a lot to be desired.
Finally getting what you want
After the king grants Hengist access to any lady he wishes in kingdom, Hengist feels his desire disappear. He no longer feel the passion and unbearable urge to possess the maidens. He realizes that his passion mostly came from the idea of forbidden fruit and now, that the fruit is no longer forbidden, it's no longer desirable.
Irony of beauty
Princess Mammalia suddenly wakes up to be an extraordinary beauty. She begins to be the target of many devotions. The irony is that Mammalia loses the inner beauty once she becomes an outwardly shining star. The good nature and meekness that the unappealing child once possessed is gone, and is replaced by a power hungry beauty who will go as far as plan her own father's murder.
Trick the trickster
In her cunning planning to dethrone her father by poisoning him, princess Mammalia doesn't realize that she isn't the only one who knows about her plans. Her father is more of a trickster than her and beats her in her own game by giving her the tools for murder which he then uses against her. It appears that father and daughter have a lot more in common than they thought.