[Orenjiya (Orenji)] Constanze's Laboratory (Little Witch Academia) [Uncensored]

Constanze's cluttered laboratory turns on an unsuspecting Akko, who finds herself pinned by mechanical arms and locked into apparatus that refuses to stop until she's trembling. The silent inventor ignores every panicked plea to wait, trading machines for her own hands and tongue as the experiment escalates beyond Akko's control. By the end the two are tangled together, crying out each other's names while the lab hums around them.