This story is purely fictional and all characters are over the age of 18. This fictional work contains scenes of fictional incest or fictional incest content. This story is the property of the author.
Please read parts 1 + 2 for context.
"Better check that, sweetie," Lynne said with a mischievous grin. "Might be important." She had snuck up on her son at the store where he works and texted him right as she announced herself. She had prepared the text in the parking lot where she had deliberately chosen a space that was secluded.
"Oh, hi Mom." Paul glanced down at his phone and saw it was from his Mom. He tapped it open. His jaw dropped as a video filled his screen.
"What's this?" he asked, glancing over at his Mother. She just smirked and adjusted her tight blouse, making her huge tits strain against the buttons.
"Just a little something to help you get through your shift," she purred. "I know how hard it is to focus on boring work when all you can think about is your Mom. So I made a little movie in the car to motivate you. Actually, it's an invitation."
Paul swallowed hard, his cock already thickening as the video started. The first thing he saw was his Mom's cleavage. As she spoke, inviting Paul to come to her car in the parking lot during his break, the camera angle panned down to her thighs. She had hiked up her skirt to expose her micro panties which did little to conceal her pussy lips.
"Fuck, Mom, you're incredible," he rasped.
"I take it you're accepting my invitation. So I guess I'll see you in a minute." The car is parked in the far corner of the lot.
Paul immediate asked his boss if he could go on break to go talk to his Mom about something important and literally ran out the door when she said yes.
In the car, Paul's excited attempt to kiss his Mother was thwarted as she put a finger to his lips. "Paul, did you like the text I sent you last night? You didn't reply and I think you might be mad because you know I had sex with your father last night. I actually tried to make sure you heard me because I was thinking about your and this package the whole time." Lynne squeezed the bulge in her son's pants.
"I wanted to make it up to you because we got interrupted during your lesson and then I needed a good fucking which I would have loved to share with you but we have more lessons to work through. This is your surprise lesson Paul. We only have 15 minutes so let's get started." She leaned over and gave him a deep, filthy kiss, all tongue.
Paul groaned into her mouth as his hands began to roam her body. Lynne took her son's hands and placed them on her thighs under her short skirt. "Consider this your first lesson in quickies. We aren't going to fuck yet but you need to learn how to get a woman ready for that monster cock of yours. I am going to let you finger me Paul. Do you think you can handle it?" Lynne moaned as her son slid his hand further and further up her thigh.
As she started tongue-fucking her son's mouth, Paul grew more confident and aggressive. He rubbed her mound firmly through her panties, feeling her hips subtly rocking into his touch. Lynne muffled a moan into his hair, her thighs parting to give him better access.
Taking the cue, Paul rubbed her puffy folds through the sheer fabric, applying more pressure as their kissing intensified.
"Mmmm yes baby, touch me," Lynne purred almost inaudibly, her breath hot on his ear. "Feel how wet mommy is for you. Now slip your fingers into my panties and play with my drenched cunt."
Paul hastily obeyed, even though he didn't quite know what he was doing. He had seen enough porn to have a good idea of what to do so he pulled his Mom's drenched panties to the side and slid a finger through her slick, swollen flesh lips. They both groaned as they mashed lips and tongues.
Paul's fingers felt their way into Lynne's tight channel and he started pumping them slowly. One finger and then another.
"Oh fuck yes," Lynne gasped, her inner muscles clenching greedily around the welcome invader. "Finger-fuck me, Paul. You need to practice getting me nice and wet so that I can take your big throbbing cock in my pussy..."
Paul set to work frigging his Mom with increased purpose, curling his fingers to try to rub her G-spot. He used his thumb to circle her throbbing clit. He wanted to get his Mom so turned on she would speed up the lessons and start fucking him.
Lynne writhed against him, humping his busy hand. "You're doing great honey." She was pulsing on Paul's pumping fingers, her pussy so creamy she knew she would cum in another few minutes if they kept at it.
Sighing deeply, Lynne regained her wits and pulled her son's fingers out of her pussy. "We have to stop now Paul. You need to get back to work. It's been over fifteen minutes. Someone might come out here to check on you. "Oh Mom...I want you so bad." Paul groaned. "I want to fuck you so much."
Lynne giggled, her insides tingling as she kissed him tenderly. "I know you do, sweetheart. And you will, very soon. But trust me, the anticipation will make it so much better. I'm gonna tease you and please you and get you so ready that when you finally slide into my tight, wet cunt...it'll be the most mind-blowing experience of your life... and maybe mine too if you are up to the task."
She emphasized her point by reaching down and grasping his semi-hard cock, giving it a firm squeeze. Paul bucked into her hand with a gasp, already craving more of her touch.
Lynne put a finger to his lips again. "Soon Paul. You know we have a plan and you need to get through all of your lessons before our first college tour together in a few weeks. Remember that we will be traveling a bit without your father, so we'll have lots of sexy time to practice and have fun."
"For now, you will have the smell of me on your fingers for the rest of the night. And the taste of me on your tongue." With that Lynne inserted a finger in her pussy and then put it in Paul's mouth. He groaned as he sucked on her finger, tasting her juices for the first time.
For the rest of his shift, Paul couldn't stop smelling his fingers. Everything was going as his Mother has said and the surprises made it all worth it despite the frustration of having to be patient.
For the next few days, Paul continued to do as his Mother said, stroking his cock more and more and squeezing his pelvic floor muscles for stamina. Every day, the Mother and son found a few moments to kiss and touch but nothing like what happened in the car. Lynne guided her son telling him that he has to learn to seduce her and a part of that was going slow and being both thoughtful and sexy.
When the weekend finally arrived, Paul was more excited than ever. Hi Mom had promised that they would finish what they had started the previous Sunday and this time they would cum together.
