Guys, perhaps I can help. Little known fact, I once worked a side gig for a holiday season back in 1992 at a Victoria's Secret in Baltimore, Maryland.
"How is it that you, TopCat, worked in a lingerie Mecca," you ask?
I lived in a townhouse complex and my neighbor was a manager at the VS at Towson Town Center Mall. She liked to hire a guy during the holidays because she found men who were shopping for their wives or girlfriends were more likely to enter the store if they saw a male sales associate.
I would wear my black blazer and stand conspicuously near the doorway. You would see guys make three or four passes working up the nerve before they'd finally walk in. I was trained to engage them in conversation and then direct them to what they needed.
In most cases, our idea of what is sexy and our partner's idea of what is sexy are a bit different. That probably explains why her reaction to "what's in the box" is similar to Brad Pitt's reaction in the move "Seven."
The ladies I worked with told me to suggest the guys go with a long sheer gown or a camisole/tap pant set. Sometimes a frilly bra and modest but sheer panty is the way to go (I can tell you the difference between a high leg brief, a thong, a hipster, a mid-brief, and a bikini. I'm great fun at parties.). Thongs might be sexy, but high legs are a safer bet.
I gained much knowledge while working there, however I was not allowed to do bra fittings for obvious reasons. I hope that I've helped you gain the lingerie success you were hoping for.