Sexual Fetish Explosion by 彩虹菠萝头

Lin Yuan encounters a mysterious girl in a latex kigurumi at a convention and pays for a night with her, only to discover she's actually his English teacher, Ms. Su, who's been transformed into a sealed black latex doll by some kind of high-tech transformation technology. What follows is an escalating series of encounters where Ms. Su uses various forms of this technology—from full-body latex suits to transparent pleasure sleeves—to transform herself into different objects for Lin Yuan's use, blurring the line between teacher and student, human and object. They continue their weird power dynamic as Ms. Su becomes increasingly willing to undergo extreme transformations, including being completely sealed in inescapable latex with no openings, while a shy classmate named Chen Yuwei also gets drawn into the transformation games. This is an originally Chinese story by 彩虹菠萝头 on Pixiv. I used a mix of Google Translate, DeepL, LanguageTool, and various LLMs to help me with the translation.