Should I message him again??!!

I had sex with him a couple of weeks ago. I wanna see him again but I’m always too scared to message people. He’s snap chatted me once since (we never really were friends before then just kind of knew eachother, made out at a party and then hooked up.) I’m always so scared they weren’t into me and they’ll reject me. If I should ask him to come over again what are flirty ways to message him?