I like a christian girl and i wanta to ask her out only im not a christian. what do i do?

so im a senior in biology cuz i skipped it freshman year. this girl sits in front of me in my bio cl and shes a freshman. shes the first girl ive ever liked and we always seem to have amazing discussions together. she knows im not a christian and i know she is one. wenever the topic comes up we always end up debating and i gotta say im impressed. she really knows her stuff. shes extremely pretty and smart and really nice and we both play cello and piano and she mentioned stuff to me about this talent show her dads organization is doing and invited me to perform. i mean it was nothing personal cuz she asked a bunch of people but still. we have so much in common except for religion but other than that it is like we were made for each other. how can i ask her out?