[Oohashi Takayuki] Strange Sex [Project-H] [Decensored]

Tsukasa and his sister Sachi find adolescence turned upside down when worlds converge in their own backyard, where a colossal moving tree unfurls grasping tentacles and dimensional interference starts transforming boys into busty girls and girls into curvaceous hermaphrodites. Inter-dimensional auditor Alia arrives to correct the chaos, her own voluptuous futanari body caught between duty and distraction as she faces a preening witch, the boastful shadow of Mr. Great Satan, and a hyper-evolved plant that can pull pleasures from parallel worlds at will. Between breathless tentacle entanglements, flushed kisses and Alia's teasing suggestion to just have normal sex, the unlikely group must battle through magic and sci-fi ecstasy before their worlds collapse into one slick, insatiable reality.