Actually WEED kills a mans sex drive, for women it is fine.
After time men expierience problems being able to want to fornicate, and this is a proven fact. Libido dies.
Marijuana is linked directly to your hormone levels, and in men long term use will lead to reducing Testosterone levels, it can cause you balls to shrink, give you man boobs, and stunt facial hair growth and body hair growth.
Also Weed isnt like ecstacy and shouldnt be considered a "SEX" drug, the two arent even synomous.
in fact weed isnt that type of substance at all.
and this is a really wierd question to ask in gereral, and I am sure you will get flamed for this.