Undertale one shots

The Flaming Question (Gaster x Grillby)

This is set in my own au quick summery is the monsters lost the war and were sealed underground as normal, after 100 years Chara fell and when he died (yes I think of chara as a boy) Asriel beyond him up to the surface, he wasn't killed! But the humans found out that the monsters were still alive and when Asriel returned home everything seemed peaceful. Until 50 years later the humans made a virus that would kill the monsters and set it free in the underground. This is set before Charas death. Which is why Gaster has violet eyes and a few characters have different descriptions.

Grillby anxiously passed around his bar, the scent of burning oak and pine filled the room as he waits for his boyfriend to come down. Today was the day he was finally going to ask Gaster, his lover for the past 7 years to marry him.

He had everything set, a reservation at Mettetons hotel restaurant-the finest in the underground- his suit was ironed, the ring that screamed Gasters name in a box in his pocket, echo flowers in hand. All he needed was Gaster.

The sound of the door to the kitchen -which also leads to the apartment upstairs- and shoes walking towards him stopped Grillby dead in his tracks. He turned to face Gaster smiling. His pale white bones shine against his black suit, his glasses taped on over his violet eye lights.

"You know sweet flame, it's been a while since you had me dressed up and had flowers. What's the special occasion?" Gaster said with a proud smile walking over to Grillby and kissing his cheek.

"There is no special occasion sugar skull, I just wanted to spoil you today." Grillby replied handing the echo flowers to him. Gaster smirks and kisses the elemental, his flames reaching the ceiling. Gaster wraps his arms around his neck as Grillby catches up and kisses back wrapping his arms around the spine of his lover.

Grillby pulled away first and stares into his lovers hollow eye sockets that seemed to be filled with love and life when ever he looked into them, if anyone else got this view of his beautiful eyes they'd see something of cold and heartless. That's what he loves about Gaster -if not for everything about him- is that only he got to see how soft and sweet he really was.

"I'm always spoiled when I'm with you Grillby" Gaster spoke softly leaning into the broad strong chest of his lover.

"Come on, we're going to miss our reservation" Grillby said letting go of his spine and holding his hands instead, their fingers fit so perfectly together there was no doubt they were soulmates.

"Oh? Reservation? Oh my Grillby, are you sure there's no special occasion?" Gaster teased as he was lead outside, they both spent the long walk admiring the scenery, Grillby occasionally looking down at his very short boyfriend.

When Grillby made the reservations he told Metteton of his plan and he was all on board, he had them seated out on a patio facing the lava lake, candles were set and lit, everything was so romantic. They ordered and chatted away eating and then as guessed Gaster asked for a chocolate brownie for dessert.

Grillby knew Gaster had a sweet tooth and loved brownies, so he asked for the lovers portion so they could share. This was all planned, the kitchen did as asked. When it was brought out the ice cream had been shaped into roses and the chocolate and caramel sauce spelt out something.

Gaster was taken back and read what the syrups spelt, will you marry me? Confused he read it again out loud as he heard Grillby shift, he looked up to see the green elemental on one knee holding a small black box with gold swirls decorating it. Gaster froze, his eye lights vanishing into his hallow eyes. Grillby finally cut the silence opening the box revealing a golden ring with a violet and green gem place in the middle.

"Gaster, I've loved you since the day we met. You stood by me when the war devastated our families. I have the honour of holding you at night and calling you my boyfriend, I have the honour of seeing you, the real you. Please let me have the honour of calling you my husband" he pauses and took a breath, his flames flickering with anticipation as to his answer.
"Gaster, will you marry me?"

Gaster could feel every eye on him, even some cameras. It had been no secret that they were dating -after grillby came to the true lab and brought his lunch calling him sugar skull and kissing his cheek, the secret couldn't last long- but for Grillby to do this in the open, made his soul flutter and pound as if he just ran a marathon. The room was deathly quiet, everyone seemed to be on the edge of their seats waiting for his answer.He spoke finally cutting the silents, his voice full of love and passion.

"Yes" he let go jumping into his arms. "Yes yes yes yes yes!" He brought Grillby in to sealing kiss as everyone cheered and clapped, in the kiss Grillby slipped the ring on his finger, it fit so perfectly.

They spent the rest of the day in each other's embrace cuddling and other things.