"Zombie kiss" was the term used by humans for a rare event that sometimes happens when a zombie finds their fate mate, and the kiss is the instinct present in the zombie taking over and from then on the zombie has only one duty. To have their fate mate. The kiss happens when the zombie kisses theirs, then both develop "powers". The fact that it was rare has always prevented scientists from really observing the effects.

Soap walked in the streets of the ruined city wandering without a hill, his torn body advancing slowly. Suddenly the former soldier smelled an enticing smell coming from a street corner "grrrr..." He jumped still surprised by the change in his voice.

As he entered the alley, he ended up seeing a curled up shape at the back that smelled horribly good and as soon as he had this thought passed, the being moved and stood up, pointing a knife at him, coming out of the shadows revealing their frail human body.

The zombie widened his glassy eyes, astonished by this more than strange sensation in him, it went up his spine and fluttered in his belly, warming him throughout his being. Then Soap understood. It was love. This person was his fated mate. He had to have them.

Soap articulated with difficulty, responding to only one instinct. "M....mine..." He saw the human back away but he didn't give a damn anymore. They were his and that's all that mattered. He threw himself on them, and kissed them savagely without a second of thought.