Looking for some ideas that are both elegent and sexy at the same time

Maybe the elegance and sexy look can be found easiest in a shapely satin style dress with a somewhat open back -- but not showing the lower shoulder blades. Probably a modestly low-cut front if you want that, but staying away from any prominent illusion material. Like the previous post, it would help if you can explain more what you envision.

I think each person defines elegant and sexy on their own terms. Many brides use elegant for white/ivory/neutral colored Beaux arts wedding venues. For me, I would consider this non-sexy and not my taste. In your other posts, you said your wedding is in Las Vegas? Have you been there? There are many grand styles both modern and decorative. Find the resort that has your vibe, and peruse their pages for inspiration. Then go to Pinterest for some wedding ideas. How big is your wedding? Best wishes.