Boobs ruin everything

So, I bought my prom dress, and my boobs ruined it. The dress is everything i wanted and i love it but my cleavage is too big and it drags the whole dress down. Like, you can see it on the picture, it falls perfectly from the waist down, but from the waist up to the boobs it looks like they go down to my bellybutton. Silicon bras don’t work for my boobs, and i don’t know how to keep them up.. help please?

Edit: it’s see through in the front above the cleavage (like the sleeves), so duct tape is kinda impossible since i can’t really ‘glue’ them up without it showing