I have experienced sex, though not combat, but I still don't understand why smoking would be necessary.
You obviously didn’t put enough into it.
Well I’d had sex before combat and never smoked but after 11 months in the A Shau the first thing I’d grab from the C-Rats was those 4 packs of smokes. Didn’t matter what brand!
If you smoke after sex, you should probably be using a personal lubricant.