This 性与性取向 照片 contains
皮肤, 肤色, 裸色, 偏下体, 暗示裸体, skintone, 部分裸体, 隐含的裸露, 部分下体, and 隐含的裸体.
There might also be
猛男, hunk, 大块, 6折, abs, ab裂纹, 平坦的腹部, 六包, ab裂缝, 平坦的胃, and ab 裂纹.
In this video, actual CHOICE research assistants present information regarding the most common birth control methods in order of effectiveness, from most effective to least effective.