Board Thread:Questions and Answers/@comment-26435358-20160416085220/@comment-24851346-20160426144435

Nope. One of the rules of the setting, no infidelity. Most Monster Girls have heightened senses, and they are VERY intimate with their husbands, so even if they didn't recognize them, they'd know the taste and smell, not to mention their bodies are physiologically made to feel pleasure solely from their husbands. And Demonic Energy works as a catch-all for anything that would get in the way for a Mamano husband and wife.