thoughts on friend raising you?

lets say you're a deino. we all know currently its hell to grow to adulthood let alone get prime.

would it be considered cheating or unfair if you hit adulthood, then had a friend join the server as a deino, then you help feed him to have him reach prime. then you make a new deino and he helps you? i haven't done it, but was just wondering since i haven't seen anyone discuss this. it isn't mixpacking and deinos can coexist without killing each other. except babies they usually get eaten, so i was wondering what your thoughts were