Greatest Game/Young Maxwell/Porch sex/Exhibitionist/Caught/Turned on

Well, if you're going for it anyway, why not have them go beyond approving or giving you a pass and go straight for being so into it they are throwing their daughters at you and wanting to get involved?

In fact, how about changing their entire back history for this? Maybe make it so they have both been secretly looking forward to and hoping for something like this? The girls haven't learned their complete sex-ed from them yet after all, and at least the one you're fucking now ought to know at least a little more than she does. Perhaps make it so they were purposefully under-equipping their girls in hopes they would get sexually exploited by some boy close to their age because they want grand-kids as a result of a teen pregnancy?

"Ah!? Beckie!? No!" The girl you're fucking, Malissa, starts to panic when she hears and sees her little sister has caught you. "No! Stop! We're going to get in trouble!"

"Why do you both have your pants down?" The little sister asks and comes to get a much closer look by peering over the arm of the chair. "Is he... rubbing his privates on you?" She asks in a confused mix of shock and awe at this strange new experience just to see."

"Rebecca! You can't just go onto someone's porch!" You hear a male voice chide the girl and she flinches.

"Oh my god! What are they doing!?" A female voice follows up as she must have noticed your lack of pants and the way your hips are moving.

"Seriously, out here!? These kids, just how old..." The man mutters in a much lower voice, but still loud enough for you to hear.

"Malissa's here!" The young first or second grader defends herself.

"What? Malissa!?" The mother says breathlessly. "OH MY GOOOD!" You are finally pushed over the edge by this and groan as you unleash yet another load of your thick and creamy cum into the fourth grader. You hear the heavy tromps of rushed footsteps up the stairs, and you grin in satisfaction as you slide your dick out and decide to release the influence you have been using to keep all of your semen inside of her. There ought to be more than enough to get her pregnant in her womb already, so it's perfectly fine if the remainder flows out of her and creates a yummy sight for her parents to come in on.

You step aside just in time for the approaching mother to see her daughter have to catch herself on the chair and scramble to get her legs beneath her as a huge gob of cum plummets from her well used vagina and lands directly in the butt portion of her panties. This is then followed by several more dripping out of her as she struggles back to her seat.

The mother rushes in and actually reaches out to catch her daughter by the crotch, fully planting her cupped hand right on her daughter's pussy as she pushes her back up into the seat. After this, the mother crouches down between her daughter's legs with glittering eyes as she devours the sight of her own little girl's crotch as it belches out obscene drops of white goo.

WIP (I already know what I want to say with this, but I'm getting a little tired presenting it. Will finish the scene later.)