Let him spread his seed

Masturbating while watching these teenagers fuck has gotten you close to orgasm as well. But watching your son pump this purple girl full of his sperm would make you cum so hard.
“You want his sperm in your pussy.” You say as you use your **** powers on Diah.
Diah stops fucking Rowol and repeats after you. “I want your sperm in my pussy.”
“What?” Rowol asks in surprise.
Then Diah resumes fucking Rowol, fast and hard and tells him, Go ahead, Rowol. You can put your sperm in my pussy. I want to have it inside me.”
Rowol protests against this and says, “No, Diah. You could get pregnant.” And pushes her off.
You quickly grab your son by his wrists and pull him back onto his bed. With you pinning Rowol down, Diah quickly gets her pussy back onto his dick and returns to pumping his dick for his cum.
“Please, Rowol. I need it. Just shoot your sperm while your dick is in my pussy.” Diah begs.
“You want to cum inside her.” You say, using your **** powers on Rowol now.
“I want to cum inside you.” Rowol repeats.
“Yes baby. Cum inside me. I’m so close too.” Diah answers Rowol.
With your son having been mind controlled to accept his imminent seeding of his girlfriend, you let go of his wrists and return to masturbating.
Rowol quickly grabs his girlfriend by her hips and starts fucking her back.
“I’m gona do it, Diah. I’m gona cum inside you. Just a little more. God, I fantasized about this so much.” Rowol moans.

With Diah’s seeding assured, you go back to masturbating. Just like the two teens are close to orgasm, so are you. This does make you wonder, what are you doing to do with the sperm you release? Then you get an idea.
Since both of them are **** to ignore your presence you can basically do anything you want. You could feel Diah’s boobs and neither did Diah feel it or Rowol see it. You could hold Rowol to his bed and neither did he feel it nor did Diah see it. With this in mind, you stand on Rowol’s bed. You then position yourself right next to Diah and you shove your dick into her open mouth. And so, you start face fucking your son’s girlfriend while she doesn’t feel it, he doesn’t see it, and neither does anything to stop you.

Shortly after, Rowol makes his announcement and says, “Diah, I’m there. I’m gona blow. I’m … ah aahhh. I’m cumming, Diah. I’m cumming inside you. Oh, this is amazing.”
Diah starts orgasming as well, but you not just yet. You continue fucking Diah’s mouth while you say, “That’s it, son. Cum inside this bitch. Put your babies inside her.”
That is when you climax as well and you start filling Diah’s mouth with sperm. You make certain to keep your dick far enough into her mouth that she is **** to swallow. After you’re done feeding your sperm to this 18 year old girl, you pull your dick out of her mouth, allowing her to speak again.

“Oh, wow. Rowol. That was amazing.” Diah says as she remains seated on Rowol’s dick.
“Yes, Diah.” Rowol smiles. “You were amazing.”
Diah giggles at his comment, then asks. “So, you really fantasized about having sex with me?”
“Oh god. Did I admit to that?” Rowol laments.
Diah giggle again and says, “Aww, you really desire me that much, my love?”
Rowol raises his torso so his face comes close to Diah’s and says, “If I didn’t desire you, I wouldn’t have fallen head over heels for you. Wouldn’t I?”
Then Rowol starts kissing Diah. Diah embraces Rowol and returns his kiss.

Assuming they are now in post sex, you put your dick back into your pants and make ready to leave. But then you see Diah start moving her hips again. You decide to stay a while longer and then see the two roll over. Now with Diah below and Rowol on top, you son starts thrusting his hips and the teenagers start their second fuck. You smirk and leave your son’s room. Once out of view you focus on both their minds and say, “You can acknowledge my presence again.”
As you walk away you hear them both repeat your order. Then they continue their fuck session.

You head back downstairs and keep yourself busy while your son fucks his girlfriend. After a while you hear the both of them come downstairs, still blissfully unaware that you are present. That is when you show yourself and announce that you are home early.
Rowol and Diah are at first surprised to see you. They have a fear on their faces, like they have been caught red handed.
You then point at Diah and ask, “Who’s that?”
Rowol looks at Diah and says, “That uhm …” Then he looks back at you and announces. “This is Diah. She’s my girlfriend.”
“That’s Diah?” You feign surprise. “You never told me she was a girl.”
Rowol starts to blush from embarrassment and replies with, “Daaad, I never told you she was a guy either.”
Diah instead starts giggling. Probably because Rowol looks cute when he’s all embarrassed.
“And a girlfriend too.” You continue. “Tell me, Diah. Should I congratulate you for seducing such a wonderful boyfriend or need I congratulate him for catching such a beautiful girlfriend.”
This makes Rowol even more embaressed, but Diah seems to appreciate your sense of humor.
“You can congratulate both of us, sir.” Diah says, “We are both lucky to have found each other.”
Then Diah leans in close to Rowol and kisses him on the cheek.