Costume Party Extravaganza – Year Two is an adult transformation comic by KannelArt (Patreon.com/KannelArt) — a Halloween costume party spirals out of control when the outfits start turning guests into their costumes for real, and it all traces back to the mysterious hostess running the show.

Story: A second year of the same wildly popular Halloween bash is in full swing, everyone dressed to impress, when a bottle shatters and the strangeness starts. Chests feel weird, bodies swell and shrink, and guys and girls alike find themselves glowing with energy they cannot explain. Costumes stop being costumes: a bunny suit, a maid outfit, a cowboy getup, a superhero cape, all start reshaping the bodies wearing them. Guys turn into girls mid-conversation, everyone growing bustier and curvier by the second, too stunned and turned on to stop it.

Presiding over the chaos from a throne between two jack-o-lanterns is a white-haired, horned woman nobody remembers inviting, sipping wine while she calls the transforming guests her "girls" and praises "such a good batch this year." By the time the dust settles, the whole party has been pulled into one tangled, gasping orgy around her chair, and she is more than happy to take the credit for throwing the best parties in town.