I have an on nd off relationship w/a guy for 3years now nd he was my first kiss and etc. nd farthest we went was him just grabbing my ass inside my pants nd I’m virgin he isn’t but then there is this girl I been talkin to sexually but idk who to pick

Why do you have to pick? You’re not in a relationship with either of them. Don’t make a commitment until you’re sure of who you want to be with. Be honest with both of them and do not mislead them into thinking they’re the only person you’re seeing. Spend more time with them and see who comes out better.

It’s not about sex at this point, it’s about who you actually enjoy spending time with.