Sometimes I get horny. I guess this is quite the norm for many of us out there. I have tried thinking through which sort of stimuli set me off. Honestly it could be anything but I do love the "physique".
Say I'm on a bus typically coming home from work for example. I might observe a nice chest, a bulge or a butt, sometimes even another woman with an attractive figure... anything can get my mind wandering. Suddenly the whatever I observed becomes the centrepiece or at least part of the scene that kicks off in my mind...
Usually I move into a suitable position... I mean a position that puts particular pressure on one of my buttons. If I'm sitting, maybe I'll slide forward on my seat which pulls my trousers into my tush. If I'm in a dress or skirt I might slide back in an attempt to free myself from direct underwear contact. This can leave a little room for my lips replace and to expand a little. I can even sometimes feel a little "fresh air" down there when I do this. It's such a turn on.
If I'm standing I might try and brush up against a pole and feel the cold metal against a nipple (obviously through blouse and bra). I sometimes move my handbag in front of me and hold it with both hands. I can sometimes get an edge of handbag to rest right where I want it. I have also backed into one of the vertical poles and lodged it in the small of my back. On a deserted bus, when leaning forward to buckle a shoe I can feel the cold metal bar cleave my buttocks and even rub my anus through light dress and knickers. Definitely a turn on!
I am very careful about what I attempt especially on regular bus lines and routine travel. I know the worst thing to happen would be to be "found out" and consequently "harassed" during my regular day.
Obviously the whole time my mind is wandering backwards and forwards over adventurous scenarios: Does the hunk with the bulge move over and stand behind me? Is the woman with the blouse inviting me to look down her front or brush past her breasts?