I am glad I figured this out earlier in life. I whispered to one ex, you know there is less to stress about.
She stated why? If the condom breaks you don't have to worry about getting pregnant (and I tested clean).
She giggled then. She said what is in it for you and I said "duh" .... lube!
The relationship didn't last because while she was a wonderful person, her IQ and common sense were not there, but hey at lest for the next man or woman she was with .... she at least was educated with something I sure she would remember.