Actually, 90% man has this syndrome, if they have no erection problems. Most of them never realize or acknowledge this. So, don't laugh at this guy. Admire him because he can sense and detect the sexy girl nearby even in sleep.
Guys want to be this guy with a sexy girl laying on lap. But you guys cannot understand his pain: erection in progress, but the bench is in park, not bedroom. Imaging you are hungry and holding the pizza, but you have to wear the mask.