May I borrow your husband's cock?

This past week I got the strangest request I have ever heard. Lynn our neighbor and exotic metal artist who specializes in designing bondage gear for any dom or dungeon that can pay her price came over to our home and asked me, “I just got an idea for the simplest, fiendish, yet secure male chastity device ever designed. I need to finish designing it and I want to borrow your husband’s cock. First as a fixture to help me design it; then as a beta tester to check my lock’s comfort, and be certain that it is escape proof.” ...