Chastity and orgasm denial discussion

Hello Everyone, I absolutely adore it when my wife touches or kisses my backside. It sends sparks through me, and I really love the sensation. While she has watched me physically swell during these moments, I haven’t yet experienced being locked in my CB6000 while this happens. She is threatening to do so shortly… We hadn’t considered anal sex before and have never tried it that way. The prospect of pegging or using plugs really excites me, but she finds the whole thing a bit “gay”! I’ve made sure she understands that it’s the most sensitive part of a man’s body, and I’m not gay in any other sense. I am confident that soon I can convince her to try this with me, perhaps by starting with purchasing a butt plug. However, we are both slightly apprehensive about potential mess - yes, Poo! Before we start experimenting with plugs, do I need to clean myself internally somehow? If so, what should I buy and where from? I have looked at countless plugs on many websites. Although I’ve seen “sex toy cleaner” mentioned, I haven’t come across much regarding personal cleanliness unless you are into “watersports” or “medical play”. Am I overlooking something? Hugs