Guys have a hard time cumming while walking. Take a look at these vids and you’ll see. First of all, it makes your legs feel like they weigh a ton. It also makes your body jerky. So walking and cumming is an exercise of the will. Rubbery legs ahead!
Straight guy walks through his kitchen while vibing his cock with a bullet to orgasm (cum at 0:05)
Guy jerks his cock and cums while strolling through the woods (cum at 0:04)