When I'm in the backseat of the Driver's Ed car I make sure I sit on the driver's side. I get a nice side view of Miss Jessica.
Now I realise I can peek at her tits through a gap in her blouse if her top two buttons are undone. I've learned to put my jacket in my lap and jerk-off. Since I drive first that makes it easy for me to leave a stain or two in the backseat. She still keeps a newspaper or something in her lap. I think she rubs herself but not an 'unzipped in the pants finger,' like she did with me when we were alone.
On the days I can't spank in the backseat I have enough fantasy ammo to cum with in my room at night. I seem to shoot bigger and thicker loads when I dream of Miss Jessica.