IIN to be attracted to the smell my girlfriend leaves on my clothes?

I think its entirely normal for me at least, when we're both away from each other my girfriend and I swap an item of clothing each , like a t-shirt or something we've worn for a day or something . I sleep with it at night as does she, keeps a nice connection aside from texting
Theres nothing sexier than the smell/scent of your girl imo :)