The clear stuff that i sin girls underwear is called discharge. It comes before your period, its perfectly normal.
The reason you have brown stuff in your underwear is because you didn't clean yourself properly. Not wiping yourself can lead to an embarrassing stain on your underwear as a result of waste that was not cleaned up properly.
yessssssssssssssssssssssssssssssssss yessssssssssssssssssssssssssssssssss
no prbably not
No , unless you having Anual sex
Wet dream?
Old blood
You should probably see a doctor about that
Fighting fhfhfh fhfhfh
Yes you can see underwear and other stuff through them. :)
Discharge........its wierd and nasty but it happens
the "stretchy stuff" at the bottom of jackets, and on the top of underwear, the cuffs of some jumpers, etc. is called elastic