Hard to imagine! A guy told my wife "No, don't do that!"

Wife and I were talking about stuff we did before we married - while we were fondling each other in bed one night.
I told my wife that I really love going down on a girl.....which led me to the question: "Do you like going down on guys, or just do it to please?"
She told me me that she likes to suck men off.
That she likes putting them in her mouth - she gets off on it - and isn't just doing it because they expect her to after an expensive dinner, etc.
"I like doing it!"
She added a little embarrassedly, "if I really like them they get to cum in my mouth. I love to surprise them... when I don't pull off!"
Then she told me about this guy who took her to a car show out of town. They stayed in a nice hotel - had a nice dinner. He was a few years younger than my then 29 yr old wife....but he was pretty cute, my wife said.
"I knew we were going to have sex."
Back on the big soft hotel room bed things progressed nicely - she stripped to her bikini panties and got him naked. Then she lay on him fully, kissing and touching...and getting super turned on by this hunky youngster...then she said,
"I kissed my way down his chest, across his firm tummy and then grabbed his big balls in one hand and his hard-on in the other and dropped my face straight down on him, taking his dick into my throat as far as I could get him....and gagged a little! There was a commotion!! - he suddenly sat up, I thought he was being sweet, and was concerned about gagging me with his big dick!, until he yelled, "Don't do that!"
"What?" I said, sitting up.
"Don't put my penis in your mouth!"
"Talk about awkward!...I felt like a tramp. He stayed hard and was strangely all worked up, breathing hard.
He pushed me on my back, spread my legs roughly, mounted me and pounded me hard down into the bed. I did NOT cum! And now I'm miles from home, no car, have to sleep next to this guy and ride home with him tomorrow!"
She said it was really embarrassing.
I reassured her - that he was nuts and that "honey, any guy would love to have you sucking them like you tried to do that night!"
She laughed - "Oh, I know that dopey - he wasn't my only rodeo - I know men love it, probably as much as I do! But boy - he made me feel like a ....."
"NO, honey! You are a normal healthy female! He was just really weird!"
Still - I could tell that she continued to feel funny about a man reacting to her like that.