ok but like, how would the tale, fell, and swap skelebros react if their S/O is a cereal killer? No, they don't kill people or anything, but like the skeles just sometimes finds their S/O in the backyard stomping, kicking, smashing a box of cereal throughout the course of their relationship?
w h e e z e i n g i c a n ‘ t o m g i t ‘ s 4 a m i ‘ m g o i n g t o w a k e p e o p l e u p
As with anything that weirds UT!Sans out, he makes puns about it. But this exceeds even his excellent punning ability. Why? I mean, you do you and all but… he was gonna eat that. Oh well, he can buy more.
UT!Papyrus is very alarmed. What did that poor cereal ever do to you? He has a habit of personifying inanimate objects. He feels sorry for the cereal, to put it simply. He starts hiding cereal in the house from S/O in a brave effort to save their little cerealy lives.
UF!Sans is actually kinda scared. What the hell is wrong with S/O? Have they finally snapped? Is he gonna be the next box of cereal? Oddly, eh begins stocking up supplies of cereal for S/O to destroy in hopes of warding off his own demise.
UF!Papyrus is also concerned S/O may have snapped. So he starts trying to get them to channel their destructive energy into something more productive. Like crushing their enemies beneath their heels like tiny bits of crunchy cereal! On the other hand, he is slightly annoyed when S/O gets into his cereal.
US!Sans, while he also personifies inanimate objects like UT!Papyrus, is more concerned about his own cereal. He needs his sugary cereal fix, and he can’t have both S/O and Papyrus trying to keep him from his one true love. (Sorry S/O, the cereal was here first) So he starts taking drastic measures to get his cereal fix. The air coming from the vents smells suspiciously of artificial chocolate flavoring.
US!Papyrus, while he finds this cereal destroying habit a bit odd, is pretty chill about it. “Hey, if you could, would you destroy Sans’ cereal stash next? He doesn’t need that sugar. We don’t need him to have that sugar.” Other than that, he’s chill. Just don’t touch his cereal with the real honey in it. The US bros are very serious about their favorite cereal.