i need advice

i’m friends with benefits with this guy and i feel really comfortable with him and i feel like i’m ready to take it to the next level and actually have sex with him but it would be my first time and i’m kind of scared.

everytime i think about it i always feel like it’s going to hurt or somethings gonna go wrong and i don’t know what to do about it.

this might be stupid but my main concern is that it won’t fit...