him back

You ignore the pinch, but after a few seconds you push your ass back out towards the security officer onto his leg.

You turn around and give the officer your best seductive smile and say, "I like a man in uniform." You chuckle to yourself as the security officer looks flabbergasted and does not know what to say. You move your ass sideways towards his groin and push back. You feel his rapidly hardening member and you turn and whisper into the guard’s ear, "Hey, big boy... Wanna play?"

At the same time while facing him, your left hand reaches down to his groin and you gently rub your hand on his cock. Glancing down, you can see a visible bulge in his tight uniform pants. The Security Officer has gone bright red with the attention and you know that there are several people intently watching this in the carriage. You feel the train slow for a stop and you know this is your opportunity to extract yourself from the situation.

As the train stops and passengers start to move out you join the crowd and shout; "Look, this security officer has a boner. What a pervert!"

The officer tries to cover up the evidence but the damage is done and people are pointing and laughing; a few even clearly have taken pictures. With the officer distracted and immobile on the train you take the opportunity to disappear with the crowd. You choose to take a taxi for the rest of the short journey. The whole situation has left you with a smile on your face due to the arousal you felt controlling the guard and the irony that you were equally the pervert in this situation.