Cracked a joke about my good veins being called "nurse porn" and the phlebotomist said it made them uncomfortable. Is that taking it a little to seriously or should I stop repeating this?

I was having blood drawn and the phlebotomist said I have nice veins.

I laughed and told them I've had two boyfriends who were nurses and they would literally rub my veins there with their finger and say, "That's nurse porn."

She then looked at me and said, "That makes me uncomfortable."

It seems like a pretty innocent story to share to me. Frankly, when those same boyfriends and I would hang out with friends, they would literally point out those veins and say the same thing ("Look at my boyfriend's veins, that's nurse porn there.")

IDK, was I out of line?