I think this can be answered in a much simpler way. Lets take shoes for instance. I love shoes. I love Guys sneakers, and i love Womens heels. Heels for example somewhere along the way a member of society that is a women by gender said id like to wear a shoe that looks like this and came up with heels, then other women were like hey i like that and they wanted to wear them, im sure somewhere along that way a guy said, hmm i wonder if i can wear them, and the women in turn said these are ours, u find something that fits a man, so it all goes back to gender roles in society, but i look at it as i just love shoes, and just because society tell me what im supposed to wear doesnt mean thats how i have to do it. So really its not about expressing a "feminine side" its just about what you like, some of us like to wear clothes that are made for women by society.