Have you ever caught your husband masturbating?

No but if i did i would either join him or help him

Yes. I convinced him that I was much better at managing his equipment, and he allowed me to take over.

A lady I dated told me this story. Her and a friend had gone out one evening but at some point they cut the evening short and decided to take a bottle back to her friend's home. On returning, my lady's friend said to her to go and get comfortable in the lounge and she'd bring the drinks in. She went in but quickly returned to the kitchen and said, 'you best go and have a word with your husband'. Apparently on entering the lounge there was this husband, trousers around his ankles, masturbating to some porn on the TV whilst wearing headphones.

I have been caught and we ended up having sex

Walked in on my wife a few times. I got her into that maybe inadvertently.