When a girl likes to smell her boyfriend’s clothes/pillow, what smell is she enjoying?

Girls often like to wear their boyfriend’s clothes because of the smell, or they like to hug his pillow and smell that. Etc. But which smell is the girl enjoying?
I have never had a boyfriend. / I'm a guy.
I do NOT enjoying smelling my boyfriend’s things.
I enjoy my boyfriend’s natural scent.
I enjoy my boyfriend’s perfume/deodorant. (For example, buying a men’s perfume and spraying it myself would do it for me.)
I enjoy a mix of my boyfriend’s natural scent and perfume/deodorant.
Select gender and age to cast your vote:
When a girl likes to smell her boyfriend’s clothes/pillow, what smell is she enjoying?
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