'Accidentally' rub up against him

From Create Your Own Story

The bus hits a small bump in the road, quickly you decide to make the situation count and you fall back against the old man, your hand hitting against his crotch, you apologize but you let your hand linger near. The man moves closer and takes hold of your own hand, pressing it against his crotch, looking up you give a smirk of approval, if it was any other day, you would happily hop off at the next station and take the thick dick for a ride but today there was going to be no chance... It didnt mean you couldnt have a bit of fun though.

Making sure nobody was paying attention, you slid up next to him and unzipped his trousers. Placing one hand inside and after pushing aside his underwear, you took hold of his cock. The man grew red in the face but nodded as if to say 'Go on'. Taking a firm grip you start pumping his cock up and down slowly. Quickly the man pulls you around till you are now face to face with him. You continue to pump his shaft, the face breathing slowly. You start speeding up, precum dripping down your hands.

After a few minutes of doing this, still nobody has noticed. Suddenly the man gasps