You are married to Koby, you have been for years. You didn't realize when he came in the door back home that Koby's body was actually holding Smoker's soul and Smoker's body is holding Koby. Smoker in Koby's body is trying to tell you but you're already kissing him. Smoker will feel a bit guilty at first but he can't help himself, you feel too good. Koby did tell him to let you kiss Smoker as that's how you greet him at the door but he forgot to mention the rest of the way you usually greet him.