Firstsly:
DO NOT SMOKE OUT OF BOTTLES!!!!
that shit is extremly unhealthy because the smoke reacts with the plastic. And releases toxins which can be poisonous.
Second:
If your friend is just being a asshole throw the pipe back in his face and go to a smoke shop and buy a new one. I bought my first pipe when i was 14 from a High Times headshop. The worst thing they can do is card you. If they dont let you buy one then either learn to roll joints or ask if anyone is trying to get rid of a pipe or bong.