Here’s where we get a little personal, so avert your gaze if talking about boobs makes you blush!
I’m a 36DD or a 36F, depending on the time of the month. At first I had thought, hey, I’ll just find a longline strapless bra (the kind with the extra material that goes over your ribs) and go with that. But after an incredibly time consuming bra fitting at a specialty lingerie shop, I found that with a bra underneath my dress you could always find an angle to see a sliver of cup or the center of the bra. I was also dismayed that so much of this kind of lingerie is insanely old school. Fifties cone-boob bras are still in production and for sale! I found some, put them on, and have never been so thankful that conventions have changed.
Part of these difficulties were in the design of my dress, and part was just that any bra with the right support and coverage just had really tall cups.
FYI for my large chested friends, my favorite strapless bra in the world is the Wacoal Red Carpet Full Figure Strapless Bra (854119). I once thought that I could never wear a strapless, but have hope!
So instead of all that, I decided to make a really common alteration to my dress—sewing in dress cups! There are a few reasons to opt for sewn-in cups, but since my dress already had good structure below the bust with some boning, all I really needed was a little support up top.
Step 0: Buy the right size dress cup for sewing. I bought mine on Amazon for 10 bucks.
Step 1: Take one cup, fold it in half, and mark the center at the top and bottom.