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原来我一直搞反了,以前以为做爱做过程中感受越来越紧是女孩越来越舒服了,看了这篇文章才发现原来是反了。 It is good to know.
https://www.psychologytoday.com/ ... ght-and-loose-women
"As women become sexually aroused, vaginal muscle tissue relaxes somewhat. Biologically, this makes perfect sense. Evolution is all about facilitating reproduction. A tight vagina would impede intercourse and reproduction, so women evolved to have sexual arousal relax the vaginal muscles, allowing easier insertion of erections–and greater chance of pregnancy.
However, arousal-related vaginal loosening does NOT produce a big open cavity like the inside of a sock. Rather, the vaginal interior changes from resembling a tight fist to a fist loose enough to insert a finger or two." |
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