The real reason Harry Potter's mom was the best potions student. (i love the look on severus's face)-I like to think that Lily was great at potions on her own and Snape just perfected his potions ability as a way to impress her.
"The public's in danger!" "My evening's in danger!" "YOU TELL ME WHERE MY SUIT IS, WOMAN! We are talking about the greater good! I am yo' wife! I'm the greatest goooood you're ever gonna get." best quote ever.