A girl with an insanely strong milk intolerance starts producing milk for some understandable reason that I don't care to think about and, since she has a milk intolerance, and milk is in her body, she starts inflating with gas
The inflation makes her horny, which causes more milk production (for some reason), which makes her even more gassy
And she just keeps gradually, slowly inflating with both milk and gas without stopping
And she eventually reaches equilibrium, expelling gas and milk at about the same speed as she's producing it, but not before she gets absolutely massive
-that guy