4. Two Condoms, Three Partners
You are about to have intercourse with three consenting adult partners, one after another. Exactly two of them are HIV-positive and one is HIV-negative, but you do not know which is which until the moment you are with that partner.
You have exactly two condoms. A condom may be reused, but any surface that has touched an HIV-positive partner (or another surface that has) will certainly transmit the virus to the next HIV-negative person it contacts. You must plan the order of use, putting on, removing, turning inside-out, etc., so that when all three acts are finished no HIV-negative person (including yourself) has been exposed to the virus.
Is it possible, and if so, how?
Added 4 August 2008
Hint: Think of the two condoms as two layers you can rearrange. Try to keep one surface that never touches an infected partner until the very last moment.
Solution:
Yes, it is possible. Number the condoms C₁ (inner) and C₂ (outer):
- Put on C₁, then pull C₂ over it (double-layer).
- Have intercourse with the first partner. If this partner is HIV-positive, only the outside of C₂ is contaminated.
- Remove C₂ and set it aside (its outer surface may be contaminated).
- Keeping C₁ on, have intercourse with the second partner. If this partner is HIV-positive, only the outside of C₁ is now contaminated; its inner surface (still against your skin) is clean.
- Turn C₂ inside-out so that its previously clean inner surface is now on the outside, and pull it back over C₁.
- Have intercourse with the third partner.
Throughout the process exactly one condom surface that has never touched an HIV-positive partner (the former inside of C₂) is the only surface that contacts the HIV-negative partner. Therefore no uninfected person is exposed.
Comments (4)
Is there a real answer dude? Wont u tell it :/
There is a real answer.
Use one condom on two of the prostitutes, faking an orgasm with the first. If the second one protests, she's AIDS free.
make sex with the 3rd person.who had no AIDS
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