Part 1

"You know, we've met before, actually." Gaster said, careful to keep his tone casual.
Grillby looked up from the glass, and studied Gaster's face.
"I don't... What did you say your name was?" Grillby said slowly, unsurely.
"Gaster. I'm doctor W. D. Gaster."
Royal scientist, father of Sans and Papyrus, and your goddamn lover!
Not a flicker. Not a spark. Nothing.
"I don't..." Grillby slowly shook his head.
"It's alright." It took Gaster everything he had to keep his face even. To keep himself together.
"It was a very long time ago. I'm not expecting you to remember."

Part 2 of He loves me, he loves me not... Series