Go together to an erotic lingerie fitting. You don’t have to buy it. Here the goal is to enjoy the way it reveals your sexuality, adds confidence, and how it affects your partner.
Go to a specialised lingerie store or a sex shop. There you can find more racy and unusual options: butt cleavage panties, open bras, a body from leather ribbons, belts with chains or fringes, multiple fetish accessories.
Select several sets together. Go to the fitting room and flaunt it. Feel free to be sexy, feel yourself with hands, show yourself off from all sides! Remember to look in the mirror and admire what you see. You can score the selected looks together and this will help you understand who likes what better. If the fitting room allows, you can go for some petting, or even do something naughtier :)