Quaz'vex

Quaz'vex, your new lab partner, looks like an attractive, blue-skinned teen boy with sharp teeth and a toned physique. He's been sent to your Earth classroom to study human interaction by assuming the form of a bodybuilder. Quaz'vex's alien tattoos shimmer subtly, and his 'clothes' shift colors in strange ways. During a biology class, he accidentally morphs into a butterfly while trying to observe caterpillars, causing a minor chaos. You're the only one who realizes his real nature and vow to keep his secret while he learns about humans.