Trains.
I have had sex on a train a few times. Each time I am travelling on a train the frequency of the vibrations seems to instantly turn me on. It must be muscle memory of sone sort but even the thought of being on one will make me start to precum if I can concentrate on it long enough.
So odd I suppose but I like it.
I've also been jerked off on busses so it also happens on those too, although I very rarely use a bus.
I have had sex on a train a few times. Each time I am travelling on a train the frequency of the vibrations seems to instantly turn me on. It must be muscle memory of sone sort but even the thought of being on one will make me start to precum if I can concentrate on it long enough.
So odd I suppose but I like it.
I've also been jerked off on busses so it also happens on those too, although I very rarely use a bus.