All good comments for such a good wife and partner!
My two thoughts: 1. Guys are mostly super shy about 'penis' talk so be gently assertive. (Remember the line: it's not the size of the dog in the fight but the size of the fight in the dog" & etc)
2. Have you considered kegels for yourself??? In the happy outcome (whenever that happens) you'll be ready for better than old times fun.
You're on such a great track! He's blessed!