The next night, Friday, both my mom and I ended up going to pick my dad up at the airport.
My mom was wearing a tight jean skirt that fell a little above mid-thigh and a lacy black v-neck shirt. I'm sure it was part of her attempt to make sure that my dad stayed erect all weekend long as payment for the sex show she had agreed to put on the night before via webcam.
Before long we spotted him and he made his way over to us. He gave her a big hug and kiss.
"Look's like someone is going to be having an awfully long weekend," she said with a smirk at his erection pressing against her.
"Mmm," he whispered to her, "I can't wait to fuck you."
"You know the deal," she told him, "You're not allowed to cum until Sunday."
"I know," he groaned.
"Also, I told David that he could have half off all weekend."
"Oh really?" he asked.
"Uh-huh," she nodded, smiling.
After we got his suitcase we headed out to the car. I lifted by dad's bag into the back and my mom tossed him the keys.
"You should drive," she said.
He eyed her suspiciously but climbed into the driver's seat.
"David, you ride back here with me," my mom said as she climbed into the backseat.
"And so it begins," my dad said with a chuckle.
In the backseat my mom kissed me as he drove.
"You want me to jerk you off?" she asked, rubbing her hand over my erection.
"Really?" I asked.
"Uh-huh," she said. "You get half off this weekend, so it's only ten points."
"Yeah!"
She kissed me again and unzipped my pants. I noticed my dad adjust the rearview mirror a little.
Our tongues tangled as she jerked me roughly. I squeezed her tits through her shirt and bucked my hips a little in response to her hand.
"Oh that feels good, Mom," I groaned. She sped up the pace, stroking me faster.
"Keep your eyes on the road up there," she said, looking at my dad in the driver's seat.
My cock started to leak precum and made her hand slick and wet.
"Oh yeah," I moaned.
"Are you close baby?"
"Uh-huh."
She looked around for some napkins or kleenex, but did not see any. Meanwhile my breathing was getting heavier.
"Oh well," she said and she leaned over and clamped her mouth over the head of my cock. She kept stroking me and I quickly exploded into her mouth.
"Oh god, that's amazing," I panted as she sucked the last of it out of me.
She sat back up and wiped the back of her hand over her mouth.
"You owe me an extra 25 for that," she said.
We were all hungry so we stopped to pick up some burgers on the way.
After dinner, my dad groaned, but watched, as I bent my mom over the kitchen counter.
"Again already?" he asked.
"Half-off only lasts this weekend," I said.
"He's a smart boy," my mom said, smiling at him across the kitchen counter as she braced herself against it. "He plans to make good use of it."
"He plans to make good use of you, you mean," my dad said with a chuckle.
"Hey, you got yourself into this, mister," she told him as I pushed up her denim skirt and pulled her panties to the side.
I fucked her hard and fast and before long I was cumming inside her for the third time in as many days.
"Are you regretting your decision yet?" my mom asked my dad as I straddled her midsection and laid my cock between her C-cup tits.
"Yes," he groaned, laying beside us on the bed.
She pushed her tits together and I slowly fucked them. She looked over at him again.
"Take your boxers off," she said, "I wanna see that aching cock."
He complied and pulled his boxers off so that he was naked. His painfully hard, seven inch cock pointed up at the ceiling.
"Oh Mom, I love your tits," I said.
"Yeah?" she asked.
"Uh-huh," I groaned.
"Hon, would you mind fingering me a little while your son fucks my tits?"
My dad grumbled but leaned over. He spread the lips of her pussy and slowly slid one finger in and out.
"Oh yeah, that feels good baby. You like how my tits feel wrapped around your cock?"
"Oh god, yes,"
"You gonna cover them with your cum?"