Sexual Relationships 
Sexual Health +1 y
What the heck causes those big brown stains in the crotch of guys underwear? Girls what would you think if you saw that?
Anonymous
Like when you see big brown stains in the crotch of all the pairs of underwear, what is that?
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Updates:
+1 y
Its NOT shit
0 0
What Girls & Guys Said
9 19I have no idea, does it smell?
I've never had that problem. I've only seen something like that in the crotch of my mom's underwear whenever I do the laundry.
Its usually a girl thing becuause of their periods, but i dont know what causes it in guys
They better get looked at..