I hooked up with this one chick last night who is good friends with one of my bud's girlfriend. At my place i found out she was a virgin and i'm trying to formulate a good plan of attack to get her to lose it. She 20, same as me, and i havent run into this problem since high school. any tips from prior experiences with virgins?

at this point in time you should learn that its a hassle not worth fighting for unless your certain you can have her lose her virginity within 3 dates or less any more than that you will be wasting your own time and money.
my suggestion to you is either invite her somewhere private where you can have dinner followed by making a move on her or bring her to another party where you can get her drunk and hopefully cop a blowjob or more
short of that bro fuck and date other girls and if you want use this current girl to date her friends.

Mark Sparks once said stop trying to sleep with girls, its messed up because when you stop trying to sleep with girls, you will be able to sleep with girls.

if this situation is circulating in your head too much your gonna fuck it up right from the start, but anyways good luck man.