Underswap!Sans Pining Headcanons
- Falls in love in first sight. As soon as Sans sees you, his soul is already bumping so hard and his face is flushed in a soft blue. You can be doing anything and he falls in love with you instantly. Eating a burger? Bam. Standing while on your phone? You have his heart and attention!
- He's always blushing around you. Even just being in a ten foot radius of you, there is a slight blush on his face. Alphys and Papyrus always tease him over it and he feels embarrassed that he can't hide his blush.
- He isn't touchy with you compared to his other buds. He gets really shy and flustered over contact. A single brush with your hand and his soul with jump in excitement, his blush deepening five times harder. If you hug him, his entire body will glow blue and he'll end up running away because he's so flustered. Don't take it wrong, he just gets so shy and doesn't know what to do when you decide to get close.
- He tries his best to be cool, but he ends up coming off as awkward. He wants to impress you! But every time he feels your eyes on him, his body stiffens and he messes up his words by accidently saying something silly. He always cringes whenever he thinks back to these moments because he really wants to impress you.
- Sans daydreams about you a lot. He likes to imagine him being your knight in shining armor and you falling in love with him. Confession scenes, him showing you affection, you swooning and him being awesome. When he confesses, he wants it to be perfect! Just like a fairy tale where you return his feelings and kiss him.









