The first method of fixing JCM poke-through (and usually the only thing you need to do) is to use the !Magnetise to V4 pose in your Poses library - see screenshot. Select the Bra, apply the !Magnetise to V4 pose, and voila! (Sorry, I don't do accents on my French words).

By the way, the multiple !Magnetise to V4 poses are required by Poser if you have more than one Victoria4 figure in your scene. There is a separate pose for each additional figure, named Victoria4 1 to Victoria4 9.

Izi

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)