So I've been on a major mission about what I'm wearing under my dress, because 1) we're waiting until the wedding for any hanky-panky and 2) ain't no way FI's going to let me sneak into the bathroom and change into something on my own. What's under my dress needs to be pretty - not that HE cares, because I could wear my rattiest laundry day stuff and he'd be thrilled, but because *I* want it to be pretty.
I dropped the ball on ordering online in time and had to just go shop-to-shop to find something... not that there's a lot of options in my area. WITHOUT FAIL, every time I went into a store and said "I'm looking for a long-line bra or bustier or corset or SOMETHING, as well as a garter belt and stockings to wear under my wedding dress", they handed me a nude-coloured strapless bra and matching conventional underwear. Not that they were granny panties or anything, the sets were pretty, but they were everyday pretty, y'know?
So yesterday I went into the adult store in the closest city that I've been to a couple of times and WOO HOO! Ivory and lace corset that makes me look like a pinup, with matching thong and garter straps for lacy thigh-highs. I was SO happy I almost hugged the girl. I texted a picture of the store's sign to FI and told him I bought him something... yeah, he's a little mad at me now, but whatever 
Are you guys going functional or all-out under your dresses?