b***k
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bigking (bigking) 于 (Thu Dec 13 18:31:10 2007) 提到:
Two men and two women, only have two condoms, can they have safe sex?
What about three men, and three women, three condoms?
N men and N women, what 's the min of condoms?
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Portfolio6 ($)^^大虫晚成^^( 于 (Thu Dec 13 19:48:11 2007) 提到:
Yes for 2 men and 2 women
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orion (M42) 于 (Thu Dec 13 20:22:25 2007) 提到:
for 3 male & 3 |
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