The SOD Sex Science Lab is a serious research lab into sex. This time, the theme is "intestinal juice." A female researcher uses herself as a test subject
▶ 在线观看：SDJS-336 “如果注入15,000ml灌肠剂会发生什么？” SOD女员工认真尝试肛交和AtoM实践研究，开始时很痛苦，但最终导致大量肠液泄漏
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