My prom dress has a halter neckline and is open back so I have no idea what sort of bra to wear. I have big boobs and Because of that they aren’t very perky so I definitely need a boost. Move tried a racer back bra but it completely shows. Strapless bras do not support at all plus the back shows. People told me to get like adhesive sticky bras, but I’m afraid they’ll fall off while I’m dancing all hard and my boobs will fall out and side boob will show. Do you think I could just use duck tape? Is that weird? I think it’ll hold and get rid of side boob and it won’t show but do you have any other options I can try?