It's safest to ignore him

You decide to ignore the security officer and just let him get on with it. A bit of sexual molestation is the least of your worries at the moment and causing a scene is too risky. It is just discomfort on your part and you can easily ignore it. It is not so different from hiding from a mech in an uncomfortable position.

Emboldened by your lack of reaction, the security officer pinches your butt again with a longer and more firm pinch. Following that he puts his right hand on your ass cheek and starts massaging it. You find yourself getting sexually excited at his touch and your thoughts are taken to a nightclub on New Terra where a man with a similar touch led to a night of good sex. After your thoughts wander, you come back to reality with erect nipples and a warm heat in your groin. You come to the conclusion that you are enjoying this.

With no real protest from his ass fondling, the security officer then goes a step further as his left hand reaches from your hip and tries to pull you backwards towards him. Still caught in your bliss, you don't resist and are pulled towards him. The guard’s right hand then moves off your ass cheek and to the other side of your hips as he presses his groin into your ass. You can feel his stiffening erection and you find yourself pushing gently back into the guard as your thoughts wander onto being fucked.

As the train lurches to stop at a station, you come back to reality and getting fucked on a train by a perverted guard is simply not going to happen. You forcefully disengage the guard’s hands and step away. You glance around at the security officer and your flushed face gives away your arousal and confused feelings. You slide out of the carriage and are relieved when the security officer does not follow you.