Introductions discussion

My Domme/Wife went through my first intro and now wants me to redo it, explaining why I’m being locked up. My Domme/Wife has a girlfriend who is bisexual, just like her. We three have hung out together before, though not recently. I reached out to her GF, things progressed, and for about six months I was having sex with her behind my Wife’s back. Everything was fine until the GF spilled the beans. To save our marriage, my Wife wants to keep me in check by putting me into chastity. I’m here hoping to find a comfortable device since I’m unsure how long this will last. That’s basically it. If anyone knows of a good long-term option, please share! As mentioned earlier, the base ring is what gives me trouble. Thanks.