Surprise visit from your sister

Startled, you turn around and see your sister Anni, who is looking at you with an amused look. She has her long blonde hair tied back in a ponytail, obviously she is meeting your father to play tennis, which is clearly indicated by her white skirt, shirt and sneakers. You're still thinking about how to explain the whole thing, but you have your hard-on in your hand, there's porn on your TV and you've just tried to stick a screwdriver up your ass in front of her. Any attempt at an explanation would probably be unnecessary.

To your surprise, Anni doesn't look at you in horror or disgust; on the contrary, she seems to find the situation funny.

"That wasn't exactly what I had in mind when I sent you the film. I didn't think things like that would turn you on so much."

"Oh man Anni, I'm really embarrassed. Can't you just go out and come back in two minutes? And we'll just pretend you never saw it?"

"No chance, brother. Firstly, I've already seen everything anyway, I've been here for a few minutes. And secondly, I find the whole thing far too interesting to just leave now."

"Bullshit! Please Anni!"

"I don't want to be so mean, so I'll make a suggestion. You tell me what you would have done now, since you obviously can't manage to fuck yourself."

"Could there be anything more embarrassing? You can forget about that."

"Now let me finish." The grin on her face as she pressures you gets wider and wider. "Or if you don't tell me, then I'll go to dad right now and tearfully confess to him what I just saw here. So, how does it look?"

You think about your options for a moment. What do you have to lose, after all, you were about to give up and just jerk off. After all, that doesn't make it any more embarrassing than what she's already seen. So you tell her the truth.

"Well, you see, it wasn't that difficult, brother. And as a reward, I'll even help you with your problem."

A little irritated, your gaze now swings back and forth between your sister, who is currently rummaging through her sports bag, and the television, which now shows a man being simultaneously fucked in the mouth and ass by a dark-skinned transwoman and by a blonde woman with a strap-on. The fact that the short tennis skirt rides up a little as Anni rummages in the bag on the floor with her back to you doesn't exactly help to make your cock smaller.

"Any penetration is much easier if the hole has been well lubricated beforehand. Since our asses, unlike a vagina, do not secrete any natural secretion for lubrication, this needs to be helped. One option is to use commercially available lubricants such as petroleum jelly, if necessary. But oil, liquid soap or something similar can also be used." The conversation is now taking an increasingly embarrassing turn, as much as that's possible, but still the level of your horniness doesn't diminish one bit.

"But of course it's much hotter to use natural substances such as saliva, sperm or even pussy juice. We don't have any sperm on hand at the moment, you can experiment with saliva yourself, so..." With a dramatic pause and painfully slowly, she finally shows you something she took out of her gym bag, a dildo! The plastic tail is about the same length as the screwdriver, but is slightly thicker and anatomically correct. Anni is now standing directly in front of you and places her left foot on the coffee table, causing her skirt to ride up so far that you can see her panties. With her left hand she begins to stroke her pussy through her panties, so that a wet spot quickly forms on them. The whole time she looks you straight in the eyes while the lust slowly spreads through her body, which she makes clear to you through her heavier breathing and an occasional quiet moan. Finally she pulls her panties to the side and you look directly at her shaved, dripping pussy, only about half a meter from your face. Then she takes the dildo and puts it in her pussy hole without hesitation. You now start jerking your cock again, but she stops you.

"Not so fast, darling, wait. This is for you after all. Now make something of it." With these words she pulls the dildo, which is smeared all over with her pussy slime, out of her cunt and pushes it into your hand. She then bends over again and spits a good load of saliva onto your asshole. Despite your horniness, you are completely overwhelmed by the situation and just look at her irritated. You wait for further instructions, but Anni has now moved on to fucking herself with three fingers and is just watching you. For a moment you are still undecided, but then your desire for an orgasm takes over and you place the tip of the dildo on your asshole. You carefully start to apply pressure and it's actually much easier this time. Anni gives you even more encouragement.

"Imagine sitting on the toilet and having to shit. Once your asshole relaxes, the thing slides in by itself. Trust me, I know my way around." Your sister's vulgar language only turns you on even more, just the thought of someone or even you putting something in her sweet little ass almost makes you cum. The thought also distracts you so much that you don't even notice that you have now completely inserted the dildo. You are now jerking off faster again and her hand is moving faster and faster in and out of her cunt with loud smacks. You subconsciously notice that she has now put her entire fist in her pussy. Suddenly she points her head towards the television and moans loudly: "This is the scene you should watch!" out of here.

Your gaze also goes back to the porn, where a new scene has already begun. This time you see a man in a prison suit riding a young, blonde police officer, who is meanwhile sucking the cock of a transwoman, also in a police uniform. The endowed girl just now pulls her hard-on out of the blonde's mouth and sprays her cum into her face. When you look at the close-up of the cum-covered face, you suddenly realize that you know this porn actress.

It's Tatjana, your stepmother!

When the realization hits you, you squirt in a high arc and a few drops of your sperm even fly all the way to the television, where you can still see your stepmother's cum-covered face.