Chastity and orgasm denial discussion

I’ve been wearing a Curve chastity device for just over a year, and my wife is thoroughly enjoying being treated like royalty. Last night she mentioned wanting an accessory that would let her enjoy firm penetration from me without needing to unlock the cage — after all, when we get into the more intense activities, it’s difficult for me to hold back, and sometimes she prefers not to release me yet (though she doesn’t want to skip out on the penetration).

Back in the early days of our chastity play, I vaguely recall seeing a website that offered a dildo attachment for CB XXXX models. This piece locks onto the A-ring and can sit over or replace the cage entirely, functioning as a strapon. Does anyone know where this might be? Googling it for the last hour hasn’t yielded results yet. We plan to buy a standard strap-on harness soon anyway, but finding this specific one would have been ideal! Thanks!