my bf gets really hard anytime he’s around me, is this normal?

me and my bf are childhood friends and have known eachother forever and he’s never struck me as a super horny fiend or anything. he’s always seemed pretty chill and in control of himself. like, for a teenage boy he’s really relaxed, but i’ve found that ever since we started sleeping together it’s like he can’t keep his hands off me. it’s like the second i’m within his vicinity he’s literally hard as rocks. it doesn’t bother me because i have a really high sex drive and honestly it works out great for me. but i’m just wondering if this is normal? it’s like the second i’m within his field of vision he instantly gets hard and wants to touch me, even in non sexual contexts. when i ask him about it he just says “just being around you makes me horny” He’s very affectionate and loving as well but i just wanna know if this is standard because i don’t want him to just see me as a sex object? it’s like, the second he sees me boom hard as diamonds. i thought it was just the initial excitement of being together since he’s had a crush on me since we were young but it’s been months and he’s still like this.