Cumflation is a sub-type of the broader inflation trope where a character's belly visibly bulges and swells from an exaggerated, unrealistic volume of semen rather than any other liquid or substance. Like general inflation, it's typically illustrated with X-ray or cutaway art so the source of the bulge is visible, leaning heavily on fantastical rather than realistic proportions for effect. It's a well-established niche within body-transformation fetish content. Cumflation hentai comics and doujinshi are cataloged as a distinct tag on Top Hentai for fans of this specific visual.
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