I added water to my parents vodka?!
When they're not home take it out and leave it outside for a while and let it melt. Then see if you can pour a little bit of the water out. Who cares if it's a few ounces less. They're not going to notice unless you've been caught drinking before and they were keeping an eye on the bottle.
They have already noticed your actions. I would suggest "coming clean" but don't
whine if they punish you as I hope they do. If you wanna drink so bad ASK FIRST
I am not religious, but do know right from wrong. I hope you don't do this again kid.
What you did is not a good and honorable practice. "Honor your father and mother that it may go well with you in your later years" Bible.
U can't did it now. Your only choice is to avoid the topic or come clean. I suggest coming clean, your parents will respect you more in the end. Good luck!
I been in the same sittution to just buy a new Bottle drink some of it to the point where u took it