ZOZO-023 Health and physical education of co-school 2020, 4th period About the mechanism of male genitalia

"There are two types of erections: central erections and reflexive erections." "Let's remember oral ...

Release Date: 2020-12-06

Code: ZOZO-023

Title: 共学校の保健体育2020年・4時限目男性器の仕組みについて