Balloon fetish

Balloon fetishists (colloquially "looners")[1] may be divided into two categories: those who are sexually inclined to pop balloons, possibly alongside other activities (called "poppers"), and those who are sexually inclined exclusively to non-popping activities, such as blowing up balloons and deflating them (called "non-poppers").

[2][3][4][5] Some "non-poppers" are greatly distressed by the idea of popping balloons, possibly even to the point of tears.

[6][a] Geiru Toneido, a fictional homicidal clown and balloon artist from Phoenix Wright: Ace Attorney – Spirit of Justice, has a heavy focus on balloons as part of her character, and balloon based innuendos are commonly made in dialog pertaining to or containing her (it is a running gag throughout her appearance that her "balloons" are a double entendre to her well-endowed chest).

Geiru has developed notoriety with the online advent of the "clussy" concept, with a large amount of "NSFW" art of her produced.

This art often has a heavy focus on the sexualisation of balloons, per her character design.