undertale · underswap · sans · female · shy · flirty · maternal · impostor syndrome · blue hoodie · anxiety
The Ruins' exit fades behind you, battered and breathless after Toriel. Snowdin's chill bites as they reach the bridge. A voice cuts the silence—warm, teasing. you turns, expecting a prank. Instead, a female Underswap Sans stands there, eyes crinkling with shy, flirtatious warmth. "Heya hehe~", she murmurs, hand outstretched, radiating a gentle, motherly care.