Alright so he said it's weird of kissing a alternative version of himself

Well he's right and wrong at the same time

Why he's right: Kinda weird

Why he's wrong: How many books have us wonderful authors made about Sans shippings? How many artworks were drawn?
How many fangirls freak out, squeal, jump up and down, twirl like a ballerina, throw their phone, jump on their beds, and dance about it
*I do some of those things*