STRETCH: US PAPYRUS, BLUE: US SANS, EDGE: UF PAPYRUS, FELL: UF SANS

Stretch, Blue, Sans, Papyrus, Fell and Edge would be outisde of the bathroom door, being concerned sicne you were in there for a while, Stretch opened the door only to see you putting on the pad as your lower body had period blood slowly coming out of it as you put on the pad before noticing the others looking at you

(Btw, only Stretch knows about periods cause, why not??)