What is sex supposed to feel like? I’m scared

L.

Hello I’m just a teen but I’m really scared for the future when it come to sex I am bi but I think I i might feel more comfortable with a girl I also like transgender girls so I don’t know if that makes me pan? But I am really scared to do it with a guy I’m so frightened but the concept I don’t even what children or have a boyfriend even though I’m attracted to (some) I’m not sure what to except when the day comes.:/