How tall is too tall?

In terms of being attractive to the opposite sex? I am currently 6'3 and 18 years old. I've heard that males can grow up until the age of 21 and I'm concerned that I'm going to end up "freakishly tall". I'm hoping that I won't end up much over 6'4 and I'm considering calorie restriction in an attempt to limit my growth. Anyway, what do you consider to be "to tall", do you agree with my approximation of 6'4 being about the limit? Opinions appreciated.

Put the internet to work for you. via Personal Recipe 2629979