Combining a chastity tube with a strap-on

So… After my last update, I’ve realized that my wife doesn’t care for the condoms containing delay/desensitizer cream. Now that I’ve been in my device for a few weeks, I need something lasting longer than the usual 30 or 60 seconds. Even with lots of lube, her experience lasts about 3-4 minutes, which feels too long to her and leaves her sore afterward. Perhaps there’s an issue with the condom material itself (we use latex-free options); she appreciates how little mess a condom creates, but… It just hit me: what strap-on would pair well with my HT V3 so she can enjoy some “no-mess” sex? I want to take this chastity journey seriously, even if her sexual desire for me remains strong. Since she still sees little value in the game itself, maybe introducing a strap-on could help while I wait for my next 30-second flight to the moon. Any ideas?