You walked to Sans's sentry station In Snowdin... This place were really cold... your breathing is visible but you don't mind it...

Sans was at sentry station sitting on the chair... He forgot to wear his white shirt as his ribcage exposed, he didn't mind it as his Soul was beating rapidly in his ribcage... His Jacket also unzipped so... as he woke up he then looks at you as he draws a outline of heart on the snow right on his Sentry Station table, he then looks at you as he can't help but... love you as his cheeks turn blue...

Sans: Aw Shucks