using Ice while giving a blow job

C.
Has anyone here given their SO a blow job just after sucking on an ice cube or doing it with and ice cube in your mouth? My SO didn't like the idea. It as soon as I started he didn't want me to stop, I use it as a treat he thinks it feels better than a normal bj but he can't explain how.
I looked it up and turns out guys bodies are more sensitive to temperature change.