sulfur hexafluoride will work for you, but make sure to take breaks when using it or it will congregate at the bottom of your lungs and slowly suffocate you.
[im g]http://i.imgur.com/lJwZt44.png[/img]thanks op
It'll get deeper when you get older.
Turn on the puberty switch.
im not sure about that stuff.
Waiting.
did you even see this? im 13
did you even see this?im 13