Diavolo: The neck because ;).
Barbatos: Your little nose.
Simeon: Your hand.
Solomon: Your cheek.
Lucifer: In public: Your hand.
In private: Your neck,and lips.
Mammon: Your lips.
Levi: Your cheek.
Satan: Your hand.
Asmodeus: Anywhere.
Beelzebub: Your lips and cheek.
Belphie: Your lips and cheek.
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(Yay I got yesterdays and today's done.)