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they get hard because when the penis enters the vagina the muscles in the breasts tighten.

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βˆ™ 2008-02-26 21:21:36
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Q: Why do girls boobs get hard during sexual intercourse?
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Have sexual intercourse.

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i believe all girls do have hymen but not all of them bleed during sexual intercourse . if you don't bleed that does not signify that you are not a virgin. some girls don't play sports but they lose it some how in another way without sexual intercourse. do don't have to know that you lose it.

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