We've discussed it on Misterpoll too. 😉
Even if it would be a bit romantic to be both belted,knowing we can only have sex when married,and that my parents would probably love to know Emilie is in a chastity belt too(especially if she doesn't have the keys and have to wear the secondary shield,to prevent her to masturbate too),I don't want her to have to wear it.I know how awful it is,and as I love her,I don't want she experiences it.
She seems not intetested in this idea too;the only thing that would make us change our mind,is if it was a condition to be allowed to continue dating here,or to be engaged.But I don't think my parents would do it(especially the first case;maybe they'll want a talk with her about chastity if we got engaged).
But a cheap one under her wedding dress would be interesting,and romantic too(even if it sounds a bit medieval...).