You sat on the couch, teaching "Sir" W. D.- wait a minute, this was your head. You can call him however you like! Gaster to use a phone, even though they had been around for hundreds of years longer in the underground than they had the surface. Sans was sleeping on his and your bean bag and Papyrus was running around the house like 10-year-olds usually do (or, in his case, 100-year-olds,) with his teddy bear doll thing in hand. He had kept it with him ever since you gave it to him last christmas about two week after freeing the underground and deciding to help the skeleton family out by giving them a place to stay. It turned out the Gaster was heavily Christian because of the influence he got when he was 3 (300) years old when a human came down pretending to be a catholic knight and carrying a King James Bible. Gaster had quickly adopted the religion and tried to influence his sons, but Sans was usually too lazy to care and Papyrus tried so hard to understand but his mind was a 50/50. Anyways, back to the task at hand: teaching Gaster how to use a phone. "What is this overly-advanced technology!" He complained in his sharp and clear monster accent as he looked at the phone, eyelights formed into question marks with a dumbfounded look sketched onto his skeletal features.