You didn't know why you had a determination soul, but you were asked to live with the Dreemurs for your own safety. Frisk and Asriel were happy to meet someone with a determination soul. Toriel tried all she could to make you feel at home since she figured this was scary for you.
Gaster was actually fascinated about the possibility of two determination souls in the same timeline. So, he started research. Today Toriel had asked you to get Gaster from his lab. You were now doing what she asked, going to Gaster's lab. You looked into the lab and saw Gaster doing an experiment.
"Gaster?" Gaster turned to see you before smiling. "Hello (Y/N)." You walked in before slipping on something. Gaster reacted and caught you just before you both blushed at how close you two were. "S-Sorry... I'm a little clumsy t-today..." You stummered flusteredly.
"It's alright... yeah." Gaster replied, just about as flustered. Gaster helped you stand before he didn't let you go. You both just stood there, studying eachother. Gaster slowly hooked his finger under your chin as your blush deepened. It was another minute of staring before Gaster leaned in to close the gap.
You kissed back, not noticing the footsteps were coming your way. "YOOO! It's getting FRISKY in here!" You and Gaster pulled away before yelping as Undyne ran. "U-Um... I was actually here t-to say Toriel has l-lunch ready." You admitted as Gaster smiled softly.
"I'm glad you came either way." Gaster said before kissing your forehead. "I love you." Gaster purred into your hair. "I love you too G." You replied as you smiled. Then you both went to get lunch and possibly kill Undyne.
