I assume the following:
- The wife is at least somewhat dominant over her husband
- The wife is having an affair
- The wife enjoys feminizing her husband at least to some degree
- The wife is having a hard time figuring out how to "break the ice" about cuckolding with her lover.
At a minimum, these panties should get the cuckolding conversation going and headed in the right direction.
If they don't, here's my next piece of advice: Find a new lover. This one's a total dud.