Anal sex is a non normal way of sexual intercourse. Because the anal contraction is tighter than the vaginal contraction, the man is more likely to get sexual pleasure when the same room. However, this is a kind of sexual intercourse that is abnormal. During the same room, the physiological health of the anus has adverse effects. For example, it may cause anal fissure, which can also cause anal canal relaxation. In the future
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