Dyon only smiled and didn't push her. Considering his wife's beauty, she would make his blood boil even if she wore a trash bag.
Clothing in the martial world also had a more important purpose to them. This was especially so for women who may enter combat at any moment. It wasn't as though female cultivators wanted to be ogled every time they stepped foot into the air wearing a dress, so such undergarments had certain protective formations on them that obscured vision.
Of course, Dyon had personally modified the undergarments of his wives now for a very long time. He didn't trust anyone but himself to draw impregnable formations. With his current skill, even a Higher Existence turned peeping tom could only give up.