Mom teaching son how to hit on girls (and fuck)

Ever since I got married to Peter, I also got married into his family, let’s say he came in a combo with his son, which is cool, I'm in my 50s now, and I've never had children before, and I'd certainly like the experience. 

I love Shawn, he's very smart, shy but optimistic, and has a lot of quirky tastes, especially in video games, he plays Dungeons and Dragons, a board game for nerds that was invented in my age and thought nobody played nowadays.  But he's our boy, even if he doesn't carry my blood I would do anything for him, but recently he turned 18 years old and surprisingly as it is, he's never had a girlfriend. 

I constantly ask him if he has a crush on someone, if he ever kissed anyone, if he had sex, but he blushes and runs away from me, avoiding the conversation. He's always into his consoles, playing video games, doing his homework, he's very smart and got into MIT, but he's not socially smart, and I'm scared he never gives Peter and me grandchildren just because he is... well, a nerd!

I want him to bring a girl home, I wouldn't forbid anything, I would even allow him to have sex in his room if he wanted to, but my hopes for him to have a girlfriend are vanishing each day that goes by. 

Peter always tells me to be patient, to not put pressure on him, that he understands how scary it could be to talk to a woman, and that it wasn't easy to speak to me. But nowadays, girls just want to fuck, and it would be nice to know that my stepson is making at least an effort to hit on someone. 

A couple nights ago he told me he liked a girl in his applied science class, and I was blown away, I couldn't believe he actually said that when I asked! I told him to invite her over for dinner and all, but it never happened. I'm so disappointed that I began to be on his back until now. 

I've been entering his room, searching for condoms, making sure he is sexually driven, that he is not just a nerd. Then one day I got pissed, I stepped into his room and he was laying on the bed, playing video games. 

"Okay, that's enough," I said stepping towards the TV. 

"Uh? What are you doing?" he asked me when he saw me getting near his PS5. 

I turned and sighed, "you've been inside all day, playing video games, you need some air!"  

"But I don't want to get some air," he complained, holding his remote controller near his chest

"You need to go outside! When was the last time you saw your friends? Or went to the movies? Or did anything other than spend the day in here?" I was getting desperate. 

I sat on the bed next to him. "Have you even tried talking to that girl?" 

"No, I mean... it scares me," he said, "and I like being here, at home, playing games so..."

I snorted, "you can't melt your brain like this playing video games all day, you need real interaction with real people too!" 

"Yeah, but it is so hard," he told me, and then he sat up straight in bed, "it is just that everyone thinks I'm awkward and that..."

"I don't think you're awkward, you're funny, smart, with a bright future, how can they think you're awkward, who told you that?" I crossed my arms beneath my chest.

"Well... the girls..." he replied. "It is like I freeze all the time and I never know what to say."

"I'm a girl, you've spoken to me before, and you've never been awkward, have you ever kissed a girl before?" I asked, this time he had nowhere to run and avoid this conversation

"No... I wouldn't know how to..."

I sighed again, "okay, I'm going to help you, all you need is a little practice, come on, kiss me."

"What? You're my mom!" he complained. 

"Not your real mom, besides I want to help you, I want to have grandchildren some day and I won't see that happening if you don't get a girl first! Now kiss me, and don't be shy." I was so insistent that he did it. 

Shawn leaned over to me and pressed his lips against mine, it felt nice, but it needed more, "you need to be passionate, use your tongue to massage mine." I opened my mouth slightly on his, and he pushed his tongue inside my mouth, massaging mine. 

My boy is a quick learner, he understood how to kiss right away and it felt fantastic. "That's good Shawn, that felt really nice," I told him after we kissed for a while. 

"Thanks..." he replied shyly with a little smirk. 

"Okay, now to second base, if you were with a girl what would you do?" I asked him. 

"Uhm..." he thought for a bit, "kiss her maybe?"

"We already did that, why don't you massage my breasts?" I said taking his hand and he gasped as I placed it on my tits. "That's good, feel them, feel the nipples, squeeze them gently... play with them."

Shawn was surprised, but I could see he was getting excited; his joggers were outlining the hardening bulge on his crotch. "That's good, don't feel intimidated, I can see you're getting excited, I'm going to stroke you, I want you to last, you don't want to cum in your pants, that would be shameful."

I placed my hand on his hard bulge and began massaging it through the fabric, Shawn gasped, "I don't want to cum in my pants," he moaned, repeating it like a mantra. 

"And you can't cum in her mouth without sticking it inside her first so..." I began to pull down his pants, "we're going to practice for real." 

I removed my dress, exposing my naked body to him, "this is for education only, your dad cannot find out about this, okay?" I said as I got on my knees between his legs.

"Okay," moaned out the second I took his cock in my hands. 

"This is a good cock, girls will like it, you have a big size," I told him, and he smirked at me. Then I began to suck him, keeping eye contact with him. I pulled out my tongue and began to lick his virgin cock. It tasted good and I was impressed. 

 I sucked it deeply and slowly, I basically pulled out all of my skills to make him cum only to see him try hard to control himself. 

It was cute to see him about to burst a couple of times and then repeat to himself "I'm not going to cum." Shawn even looked away from me, I guess seeing me sucking his cock was too much. 

I continued to suck him deep until I deep-throated on his length. I felt his cock about to burst a couple of times against my throat, but he did a great job. Then I pulled him out of my mouth. 

"Good job, Shawn, you did great, you controlled yourself to the very end," I complimented him. Then I sat on the bed in front of him, spreading my legs and exposing my pussy. 

"Now, I want you to fuck me, I don't want you to have accidents before or during sex, I don't want you to think of this you're seeing and spurt out." I began to circle my clit, and my pussy oozed some of my juice. 

"This is the clit, if you want to give a girl an oral, this is the spot you have to look for," I said, spreading my folds apart to show him. 

Shawn leaned forward, "pull out your tongue and lick it," I commanded and he did. He pressed his tongue against my clit and swiped it upwards, "mmm that's good, you're a good boy, now suck my hole and drink my juices, it's the only way you can eat out a girl properly."

I was pleased with how good Shawn was turning, he was doing an excellent job, and I was getting very aroused at how well he was licking my cunt. 

"Now, lay on top of me, and put your cock inside my hole," I said. Shawn hesitated for a while but seeing his cock dripping precum wildly I knew he wouldn't refuse. 

He climbed on top of me, getting on his knees and holding my legs up. Then I held his cock and led it inside. Shawn pushed a little, closing his eyes. "That's it, you're not a virgin anymore," I moaned. 

"What now?" he asked. 

"Move, in and out of me, until you cum," I said, I allowed him to ease himself this time first, "it's okay, you can finish inside me." 

Shawn began to move and in a matter of seconds, and after thrusting hard and deep inside me, he filled me up with his sweet virgin jeez. The idea of taking his virginity excited me so much that when he pulled out I began to circle my clit until I quivered on his bed. 

The funny thing is that Shawn came again seeing me cum, I hope he's ready for our next lesson.