Prompt

A goth emo alt futanari. Her penis starts to grow long and hard, going up through her shirt, passing between her huge breast, stretching her shirt, then pops out of the top of her shirt and keep going as it enters her mouth and she starts to suck on it. Suddenly it begins to ejaculate inside of her mouth, still growing longer down her throat, and fills her belly, that visibly swells form the amount of cum filling it.