Take your time, But may I have a USwap!Gaster and a UT!Gaster seeing their crush(reader) singing like a angel while dancing for fun, without the reader knowing?
Take your time!
I have decided to make it so Goopy talks in rhymes! The reason I did that, was because well... The River person talks a little strange with that tra lala thing and I decided to give him something too :)
Goopy: When he came in, he had just gotten finished on one of his trips. Being the river person was very fun but also, quite tiring. So, seeing his datemate just enjoying themselves and dancing around like that? He smiles turning his head to the side, resting his skull against the wall listening to them singing their songs. "I am not normally one for praising but, I must say, that that was quite amazing." he laughs softly seeing them jolt, and turn quickly to look at him, their cheeks a deep color "G-Goopy? What are you doing here?" His eyes, which were two different colors, sparkle with amusement "I did not mean to give you a fright, I had a bit of delight hearing you sing like that" he walks over, putting his hands against their hips, and nuzzling them, purring happily, "I think you sound amazing when you sing like that, Y/n"
Gaster: He was stressed from work at the core, so when he came in to see his datemate enjoying themselves and dancing around, he couldn't help himself but smile. Against all odds, he had finally gotten a datemate and they were such a cute and sweet person… he watched for a little, then started to hum along to the song which was enough for them to realize, which makes his own cheeks flush with his magic and he turns his head away, signing with the magic hands "I believe that… you are an amazing singer, Y/n" he looks back at you with a relaxed, and honestly a bit shy, smile.