you walk to your classroom, when you saw a skinny girl sitting on the stairs, she sees you and blushes, she's so shy

Oh..., h-hi... >///<

you notice that her body is starting to get fatter, as it if were inflating

Ah!, s-sorry, I can't help but fatten when I get excited... and you... you are my crush!, so... Im getting fat for you... >////<

her body stills gaining weight, she is so adorable when she fattens