Don't give up Kayann just keep slowly peeking away at your parents and eventually they're bound to give in. I actually had to do that for both dogs although it took less begging and pleading for the second dog then it did for the first all I had to do was say that my folks wouldn't have to give me a christmas present if I could get Winter (they gave me one anyways) but don't give up.

If at first you don't succeed then try try again

Am I loser yet?