shy to see boyfriend naked

Is it normal for you to feel shy to see your boyfriend completely naked for the first time? Like I've seen him topless- he does a lot of swimming haha and he looks hot- many girls at my uni are jealous that he's my boyfriend as he's attractive and got a nice personality. But tomorrow's going to be the first time I see his hard penis. I'm not even worried about him seeing me naked lol. How did you feel to see your first erect penis in a sexual situation? What went through your head? What was the situation? How was the eventual sex?