Asking someone to make out with me?

So I know this guy, he used to go to my school, but he left, though we are still friends. Anyway, I went to the movies with him and 4 other guys and before the movie he was texting me that he wanted to hook up (kiss not sex)while we were there (I wanted to as well). We never made out though because we didn't end up sitting next to each other during the movie. He texted me that night saying next time we have to sit next to each other. We aren't dating or anything so its not gonna be 'special' but I couldn't care less, I just want to make out with him. The problem is, I haven't made out with anyone for just over a year now and I don't know if I'm any good at kissing. I'm planning to ask a friend of mine (a girl) if she'd make out with me and give me 'feedback'. I've made out with her before so thats why I chose her, but I'm really nervous about asking. I know she'd say yes, but I'm still really nervous. How do I ask her?