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Anonymous
>>1118354
"With arousal, the vagina lengthens rapidly to an average of about 4 in.(8.5 cm), but can continue to lengthen in response to pressure. As the woman becomes fully aroused, the vagina tents (last ²?? expands in length and width) while the cervix retracts. The walls of the vagina are composed of soft elastic folds of mucous membrane skin which stretch or contract (with support from pelvic muscles) to the size of the penis. With proper arousal, the vagina may stretch/contract to accommodate virtually any penis size (or sex toy/object within reason)."
http://en.wikipedia.org/wiki/Vagina
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