Guys are confusing... help plz❤️

I am a sophomore in high school and recently I have been flirty with one of the juniors at my school. We talk almost every night and he has come over to my house once and is coming over again this week. I am really interested in starting a relationship with him, but there are a lot of girls who I believe are prettier than me who flirt with him 24/7. We don’t talk very much in school because we are in very different friend groups. When we talk, we have implied getting together and hanging out and kissing and shit but I don’t know what he wants between me and him. How do I ask him without looking stupid, I havnt really had a bf before so I’m kinda clueless🤷🏽‍♀️ Thanks ❤️❤️