Inflation

Inflation refers to an exaggerated hentai art style in which a character's stomach visibly swells or bulges far beyond normal proportions, usually shown with cutaway or X-ray-style illustration so the cause, whether liquid, air, eggs, or magic, is visible underneath the skin. It's a body-transformation fetish tag rooted in fantastical, non-realistic anatomy rather than any real medical condition. Cumflation is a specific, related sub-tag focused on semen as the inflating substance. Fans of this visual trope can browse a dedicated selection of inflation hentai doujinshi and comics on Top Hentai.