From Idols to Inflatables (COM) (Patreon)

Fubuki, determined to enhance her figure, decides to experiment with helium. Initially, everything seems to go according to plan, with Fubuki gently inflating. However, the mischievous Matsuri arrives on the scene and playfully adjusts the helium pressure, causing Fubuki to rapidly inflate beyond control. As the chaos ensues, Matsuri accidentally stumbles onto the helium tank, triggering a chain reaction. Now, both Fubuki and Matsuri find themselves helplessly inflating together, their bodies expanding into a colossal blimp-like form.