I was already late for my flight back from London to Hamburg - and then I got a spontaneous erection while waiting for my Uber to the airport! Unfortunately it doesn't go away on its own and I can't go through security with a hard on... So I guess I'll have to jerk off in the car! I'm as quiet as possible in the backseat while I jerk my cock - and I lick all the cum up at the end so the driver doesn't get suspicious ;) (English)