Talk:Monster Girl Encyclopedia World Guide III: Sabbath Grimoire/@comment-46040649-20200924174620/@comment-10429980-20200928195409

To be more specific, during sex a monster's mana (which is constantly covering her body as her body produces it like a shroud) acts on reflex to prevent injury to the man from her claws or horns. In practice this means the mana acts as a protective cushion, gently pushing away if a claw or horn or other sharp part would cause damage by accident. Since this property activates as a reflex during sex, the monster doesn't even have to think about it.

Note, this protection does not apply to intentional and harmless levels of injury, such as the bite a vampire may give if she wants to feed on her husband's blood while having sex.