Settled in Joe's car, they drove out of the parking lot and headed back to Helen's house.
While the rolled down the street, Helen slid over next to Joe and began to stroke his leg.
"You keep that up, and I'm liable to have an accident," he said, his voice hoarse.
"I owe you," Helen whispered, stroking his already-stirring cock. "I owe you big time." She loved how his organ grew and swelled as she teased it through the fabric of his slacks. She unzipped his pants, reached inside them, and took the swollen lance in her hand.
"My God, woman!" Joe gulped, "Do you have any idea what you're doing to me?"
"From the feel of things, I'd say I'm turning you on," Helen replied calmly.
"How...how am I supposed to drive?" Joe croaked.
"You could always park somewhere," Helen told him.
"Here?" Joe asked, "In the middle of town?
"That's your problem," Helen said. She finished pulling his erection out of his pants. She almost giggled. It looked obscene sticking out from his fully-clothed body. She began to stroke it gently and could feel it throbbing.
They approached a rest area. Joe pulled in, parked near the back, and shut off the engine. "I sure as hell hope none of the patrol units swing through here tonight," he gasped while Helen's hand continue rubbing up and down on his shaft.
Helen used Joe's erection as a handle and urged him to turn toward her. After he did, she bent down and licked the florid, arrow-shaped tip of his cock, tasting the salty, acrid taste of his excitement.
"Ohhhhh!!!" Joe exclaimed, thrusting his hips forward, trying to get Helen to take more of him in her mouth.
"I can't believe I'm doing this!" Helen thought as Joe's massive, swollen wand slid between her lips. "Here I am, in a highway rest area, giving a blow job to a man I only met today."
She didn't care. She wanted to give Joe as much pleasure as he'd given her. She took as much of him as she could in her mouth, then began to move her head up and down, fucking him with her mouth. Her hands cupped and fondled his balls. She could hear the big man's gasps and moans of pleasure and could feel his body shaking. Delighted, she kept on doing what she was doing.