Disciplinary Action/Disciplinary Office/First Week/Visit1/Love/Answer/Vaginal/Wait/Out/Vaginal
"Actually," you say, "the thing that really bothers me is that I might enjoy it a little too much, I think I might need a little help from you if I am going to have to wait until after dinner." With these words, you motion toward your fully stiff penis which is glistening with the pre-cum, you actually have to run your fingers over it in order to spread some of the stuff around before it forms a drip and falls to the floor and prompts some questions from the girls that might break the pace of things.
"Oh?" Beatriz responds, and actually smiles a little sheepishly. "What exactly did you have in mind?"
"How about we give the girls a proper demonstration of what adult couples do?" You ask her. She glances at her daughters, and then back to you.
"Yeah, that's probably a good idea actually. We don't want them getting to scared when it's their turn. Might as well show them what it's all about so they will feel more comfortable with the idea."
"What are you talking about!?" Eveline asked.
Beatrice smiles, only glancing at her daughter for a brief second before directing a very tender look toward you. "We are going to show you the best thing a man can do for a woman." She says. "How about we take this to my bedroom? Come on!" She gestures for the girls to follow, and then takes your hand with a large smile on her face as she pulls you toward her bedroom. The girls seem to hesitate for a moment, but by the time you have gone five steps there are a couple of naked flashes in the form of 9 year old little girls flying by you and into your sister's bedroom. And, by the time you arrive, they are already both waiting at attention as they smile up at the two of you.
Beatrice practically drags you on top of herself as she lays back on her bed, and you are more than happy to oblige her as you eagerly lay on top of her and begin kissing her deeply. She immediately begins to loose herself in the passion and kisses you back like a starving animal, and grabs the back of your head with one hand while the other goes straight to your dick. The very moment you are lined up, she lifts up her hips to envelop you and then throws her legs around your hips.
Her passion is so intense it is already clear she has completely forgotten about he daughters watching, and the intensity is so strong that you are not really able to do very much at all to compensate for that fact. And besides that, you are not certain you want to at this point. It is an uncomfortable position where you are forced to choose between pleasing Beatrice and being fair and informative to the girls in order to keep them up to speed with what they are seeing, but you are certain there is no damage in having to catch them up afterward whereas for your sister it is clear that she really needs this right now and you want to give her everything you possibly can. While her full adult breasts are not really your thing, you are more than happy to give her some attention there as well and massage and kneed the padding attached to her chest.
"Mommy? What are you doing!?" You heard one of them ask nervously, you are not even able to track which one's which right now.
"I think his penis is inside mommy's kitty." The other says.
"What!? How do you know?"
"Didn't he just say!? He said and stuck his finger inside me there!" Amelie answered, clearing up which one's which with that comment.
"I wanna see!" Eveline said, and then a second later you were made infinitely more conscious of your audience as you felt the bed depress a little next to you as the two girls climed onto the bed. "But... why is mommy acting like that?"
"Ohhh!!! IT'S BECAUSE I LOVE YOUR UNCLE JOHN SO MUCH!!!" Beatrice cries out as she comes up for breath between her passionate kisses. She wastes no time after this sealing her lips back against yours and letting out a satisfied hum before releasing the lip-lock once more in order to address her daughters in a slightly calmer tone. "Ohh... I missed having him inside me SOOO MUCH! I need this right now!"
"Are you hurting him!?" One of the girls asks with concern showing in her voice. Guess she heard the way you were moaning and mistook it for pain. But then, don't kids normally think it's the father hurting the mother when they see their parents having sex? Well, whatever.
"No, I'm fine." You groan. "I'm feeling really good too!" Even though your sister is older than you usually like right now, knowing it is still the same little sister who shared your enjoyment of each other's bodies all those years ago and getting lost in all this passion more than makes up for all of that. If it weren't for the distraction of having to slow down and explain everything to your daughters, you would have lost it and blown your load already. Oh, that's right! Your daughters! These girls were the ones you impregnated your own sister with on your last night before you left town! You can't believe it, your own adorable naked little daughters watching and learning as you have sex with your sister! It's just too much!
"Ahhh!!! Beatrice!" You moan and grab her by the hips and start to speed up.
"Oh, yes!!! Ahhh!!! John!" You both become fully lost in the passion, until finally you bury yourself inside her and release all your pent up semen as deep as you can get it inside her vagina. With any luck, it might make a younger sibling for the two adorable little girls sitting naked and watching with interest as you inseminate their mother.