I'm wondering too.
How do you wear underwear when wearing thigh bands?
i don't wear underwear at all, it's not necessary if you can clean yourself properly.
As other have said,you should post in in the introduction topic.
In my case,I don't wear these at night,so I can put one before the thigh bands are on;if I wear it as punishment,so during the nights too,my parents unlock it to let me change,and then lock these back.
In my case,it's a rule.My parents don't want me to wear a chastity belt without anything else.
It is good to have some ventilation ... I get a warning before I would be seen so I get about an hour to shower so I am never humiliated by natural bodily functions back before I was married
How do you wear underwear when wearing thigh bands?
While I do not wear underwear all the time, I often do outside. While I admit my circumstances are different to most others here; because I am retired, my partner and I are usually fairly close together. It is thus easy for her to unlock the chain between my thigh bands temporarily whenever I need to change. Obviously, this would have been a significant challenge when I was working