![The original debut of his sister-in-law attempted to teach him knowledge about sex, which led to some friction between the sisters-in-law; eventually he agreed to have her practice on him, but he got more opportunities than he expected.](https://img.lytuchuang61.com/upload/vod/20240308-1/f97805ab347cc7f8928e2cae73d179a0.jpg)
The original debut of his sister-in-law attempted to teach him knowledge about sex, which led to some friction between the sisters-in-law; eventually he agreed to have her practice on him, but he got more opportunities than he expected.
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