Justified: Alice is revered as some kind of Goddess' avatar entity, and the foot-kissing gesture is a required ritual among those that worship her.
Inverted: The powerful character kisses the subordinate's feet.
Subverted: Alice discards her footwear, thrusts her soles towards Bob's face and says: "If you really love me, you got to kiss them". Bob kneels down and hesitantly prepares to do it, but Alice folds her legs and says: "Ha ha ha! I was just kidding you, I won't ever force you to do something as silly".
Double Subverted: ...But then Bob takes one of her feet among his hands and says: "But I really don't mind doing it", then he kisses it in a gentle and sweet manner, making Alice smile.
Parodied: "To prove your loyalty, you must kiss Alice's feet, Bob!". Bob focuses his gaze upon a beautiful girl with delicate feet. Bob kneels to her and prepares to kiss her foot, but it's stopped: "What are you doing you fool? She's not Alice; that one over there is Alice!". Cue the camera shift to an incredibly ugly woman with even nastier feet, complete with disturbing close-up. "NOOOOOOOoooooooo...!"
Zig Zagged: ???
Averted: The story uses other methods to show instances of humility and submission.
"We wanted to show that Bob's regret and desire to change his arrogant ways were completely sincere; so this scene was a dramatic and effective way to deliver the message"
Defied: Bob strongly refuses to humiliate himself that way. He might have renounced his previous ways, but he still has a deeply rooted sense of pride.
Discussed: "That's it?! All he has to do is kiss Alice's feet and he's completely forgiven, while I have to slay half a dozen of dragons just to be accepted into this mediocre adventurer's party?! Why I couldn't do that myself?!" "What you did was way worse than any of Bob's deeds! Besides, no one is foolish enough to allow you to kiss Alice's feet; we all know you're into that kink."
Played For Drama: Bob's utterly violent and humiliating defeat at Alice's hands is made even more pitiful when he's forced to lick his own blood out of Alice's dirty boots. Having finished, he's knocked out with a kick to the face and taken hostage to the villain's fortress.