by Steve Liang ãã³ãµã¼ãã¢ãã«ãªã©ã®å¥³æ§ãè骨ã大ããåãããã¼ãºãé åçã«æã人ãå¤ãã¯ãããã®èªèã¯å½å¢ãè¶ãã¦ããããã«ãã¬ã«ã§è¡ãããç§å¦ç 究ã§ã¯ãèä¸ã®åããå¢ãã»ã©å¥³æ§ã¯é åçã«è¦ãããã¨ããå®é¨çµæãçºè¡¨ããã¾ããã Arching the Back (Lumbar Curvature) as a Female Sexual Proceptivity Signal: an Eye-Tracking Study | SpringerLink https://link.springer.com/article/10.1007/s40806-017-0123-7 Why arched backs are attractive | EurekAlert! Science News https://www.eurekalert.org/pub_releases/2017
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