Q&A: My Girlfriend’s Vagina Changed Size, is She Cheating on Me?
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QUESTION:My girlfriend and I have been sexually active for months and she has always felt the same, tightness wise, to me. I had not seen her for two weeks because we have a long distance relationship and it seems her vagina has become wider. I asked her if she masturbated at all and she told me no. Is they any way for her to have gotten wider without her cheating on me?
ANSWER:Vaginal size typically does not change dramatically over the course of two weeks, and it is unlikely that your girlfriend’s vagina has actually grown wider.
Some people wonder about genital size because they have learned about sex mainly from their friends, from magazines or websites, and there are many myths about genitals. Aside from misinformation, could there be other reasons why you’re concerned about her size? Might you be comparing her to other women you have been with? Or if you have concerns about you two being able to trust one another, or how to deal with your own or her sexual attraction to others when you are apart, it is probably worth raising the issue, and talking about your concerns, rather than focusing on her vagina.
Vaginas change in size during sexual excitement thanks to a process called “vaginal tenting”. Vaginas start out at about 3-4 inches in length. During sexual excitement, muscular tension pulls the uterus upward, which has the effect of making the vagina both longer and wider.
Sometimes a woman’s vagina may feel tighter or looser during vaginal penetration, just as a man’s penis might feel bigger or smaller to his partner. Often this change in perception is due to a difference in lubrication. If your girlfriend was very excited to be sexual with you or if you spent more time in foreplay or did something that felt particularly exciting to her, then her vagina may have lubricated more than usual - and it may have already tented by the time you had sex with her - which may have made her vagina feel bigger. More lubrication would create less friction which could make her vagina feel wider to you
On the other hand, sometimes a woman does not lubricate much on her own due to side effects of certain medications, taking warm baths or showers, or having spent little time in foreplay. If a woman is not well lubricated, her vagina may feel smaller or tighter but sex may also feel more uncomfortable, or painful at these times. Lubrication is protective for women’s bodies and can help sex feel more comfortable and pleasurable for women, and can reduce the risk of vaginal tearing.
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Dr. Debby Herbenick
