Dogging Gaynor. Dogging, #2

Farmer Tom's dogging field had proven to be a roaring success and installation of an automatic barrier meant it was a completely hands off business venture. In the three weeks it had been running he hadn't ventured down after that first night and neither had his naughty wife Hailey. Now Hailey's older sister Gaynor had come to stay with husband Keith and it seems there are problems in the marital bed.
Perhaps the dogging field may be able to help?Extract:Just then a set of headlights illuminated the car and Hailey held her breath. The car continued past with no indication that the occupants could see anything but the sudden light had given her a glimpse of their surroundings and that was enough to see they were at the bottom of their next door neighbour's lane. If Jess or Mike were on their way home, she would almost certainly be discovered cheating on her husband.
Bizarrely, the thought made her even more horny and as Keith held her in place by her neck, she began to hump her hips up to meet his thrusts. She wondered if her sister's seat would smell of her night time adventures when Gaynor got into the car the next morning.