ugh i’m curious but scared

so my ex (we are still very close and are talking ab prolly getting back together) has been wanting to have sex with me but i’m a virgin and i want to but i just don’t feel comfortable with my “body”. and i feel like it would hurt and idk how to explain it. and i feel like it would be awkward, not just cause he’s my ex but just bc i’m a virgin and i wouldn’t know what to do. please help me. and if your just gonna comment something rude just get off my post.