Originally posted by renorenal:
[b]NEW
MYSTERY
I am the human roller coaster
Best part is, I have my own water theme park
I twist and I turn in shape
I can also make you twist and turn
If you were to hurt me, that is
They call me canals,
But I doubt I am
I have two other friends
They stay quite close to me
What am I?
[/b]
small intestine? dunno about the other one though