Absolutely definitely positively no bra. Husband should go through your closet and your dresser and except for sexy lingerie bras the rest should be burned
Now that looks like a whole lot of fun to tease and play with until your pussy is weeping cream all the way down past your ass and you are desperate for enough stimulation for an orgasm
If I understand correctly this is her first time cuckolding you. Also assuming her first time cuckolding anybody but not her first BBC so she may want a little bit of privacy so to speak with him just to get comfortable with the whole cuckolding perspective. She may not feel you are ready to see...
As I said elsewhere would love to see you modeling without the bra and panties and have you ever considered for high contrast some bright red or white matching lingerie underneath
Have you considered renewing your vows only have him enjoy her thoroughly right before so that his cum is slowly leaking down her thighs while you renew your vows and you get a nice creamy pussy too lick as a new way to consummate
Would love to spend a few hours looking for a tan line that I suspect I would never find but we all know all the fun is in to try. Then you get around to enjoying they're delicious looking playground