Zip/button dress too loose?

Now I have read this I am in a panic! my dress has a zip and it was fairly snug on me during my fittings and I felt comfortable going without a bra, but what if it does get looser during the day and it slips down. Do you think i should get a bra for underneath?

Mine's also a zip with 'fake' buttons. If it fits you properly I dont see why it would. I'm confused as wedding dresses are so well made I dont see how it would 'slip around' if it fits you!

I know with some dresses the material stretches a little whilst its on you, hence gets a little loose, but surely with a wedding dress due to all the layers of material it wouldnt do that?

?

I know - I wasn't at all concerned until she mentioned it! I may also go bra-less - I'm getting the top of my dress adjusted so will decide when it's fitted properly.

Hopefully an OM will pop along soon and calm us down

Mine is a zip and buttons but also has an internal corset. I woudn't have thought it would fall down. I'd would be interested to see anyones experiences with a zip/button ensemble as I too don't intend on wearing a bra...