This conjured up memories of Modest Medusa, only with a more adult human age level. The ability to shapechange between Giant Snek/Lamia/Teeny Hooman forms was a mood too. Would have been good to be shown why she thought Paul was 'the coolest human' than just be told. Show don't tell is a good rule to follow. It also makes stories feel less like an author just singing unfounded praises for their characters like some awful movie and television lines out there.