Chastity couples where both parthers are locked?
Are there actually couples where both partners are locked? Even without any D/S dynamic like mutual keyholding or when the dominant person hold both keys. I can think of a role play or denial on agreement to make the intimacy stronger.
I found only one article about it where a couple decided to be both locked for 30 days as a part of a contest. Not sure if I can link it here. The interesting part they discussed was it may lead to a frustration that they can spend the nights together, just without the intercourse. For me it is more like a dream :-)