I've always found feet quite attractive, and I've been friends with this girl for several years now (we're both in our early 20s).
When we're hanging out together, either at her place or mine, she always takes off her shoes and stuffs her socks into the shoes, so she can walk around barefoot. When she's not in the room, sometimes I just have a quick smell of them. She's never caught me before, but if she did, I'd probably have an excuse ready, like how I smelled a weird odour and wanted to find out where it was coming from.
I really like the way they smell. They smell musky but not in a bad way. I wish I could smell them more often. Is there any way I can get her to let me smell her socks or shoes, without compromising her friendship? Obviously I'd love to smell her feet directly but I guess this would be a little too personal. I'd even be willing to buy them off of her but I'm just not sure how she'd react.
How do I broach this subject with her?