Mermaid Siren Lures You Into Her Stomach with Her Song! [under her spell] [in a trance] [helpless] [willing/entranced listener turns unwilling] [oral vore] [fatal] [groaning tummy] [a few burps] [fighting back after being swallowed] [singing to you in her tummy] [ocean waves] [siren song] [wet, sloshing tummy] [underwater ambience]