This fictional story includes cross dressing and incest. All participants are over 18 years old.
*****
I hadn't heard my mother as she came up the stairs behind me. That was probably because I was so engrossed in what I was doing, watching my brother through his bedroom door, which was open a crack.
"Hi honey."
I turned around quickly and put my finger to my lips in a "Shush" gesture.
"And just what are you doing with your hand up your skirt like that?"
"Shush." I whispered, "Look at John - through the door, I don't think he knows we are here, or that we can see him."
My mother moved to peer through the small opening, and her mouth formed a perfectly round 'O' shape as she took in the scene.
"I see now why you are touching yourself, young lady, but you know you shouldn't."
"Oh, Mum, you know I do it, and you have to admit, watching him is kind of kinky."
"Let's go in my bedroom, then."
I wanted to stay and watch some more, but I also didn't want to upset Mum, or get caught both watching and wanking by my brother. I followed Mum into her bedroom.
"Now then, it looks like we both need to get off having seen that, so you carry on, while I try to catch you up." she whispers. As she does this, she slides her hand down the front of her leggings and I'm astonished to see she is now playing with herself, just like I was a minute ago.
"Come on, you were really going for it a few moments ago, so it can't be too hard to get back on it again." she says as I hesitate.
With her free hand she takes mine and places it where it matters. "Quick, or I'll get there first. It was certainly very kinky seeing him like that."
I can't believe what she is asking me to do, but at the same time I want to join her and continue touching myself.
"Think about what you've just seen, that will help."
"How could I forget that sight, Mum?" I ask.
"Well it was a bit unexpected. That was my bra he had on wasn't it?"
"Yes, and they were my pink panties, I think." I add, now getting quite into the heat of the moment again.
Just as we are about to reach a peak of some sort when the bedroom door opens and my father enters.
"Blimey - what the . . ."
"Shushhhh!" we both hiss at him.
"What are you doing? Wanking with my daughter? How could you?"
"Well if you'd seen what we just have, I think you'd be doing something like it. If John's door is still ajar, take a peek and see if he is still in front of his mirror. Don't open the door or make any noise though."
He goes off to look, and we continue touching ourselves, but for me it's more like treading water, just keeping myself on the boil so to speak.
He returns and says "I see what you mean. You're right, I might just have to join you. What a weird, disgusting and kinky sight?" He then proceeds to unbuckle his belt and flop out his semi erect cock. I've seen it before, but never when it has been interested, or even anything other than completely flaccid. I'm mesmerised by the sight, just as I had been by my brothers in his hand.
"Did you notice he was wearing my bra?" asks Mum.
"No, if he was I couldn't see it because he had your blue jersey dress on."
"What?" she almost shouts.
"Shushh!" we both go to her.
"Sorry, but I thought that was what you meant?"
"Well sort of, but when we saw him, he only had my bra and her panties on."
"Was he rubbing that enormous erection?"
"Yes, and it is big isn't it? I have to admit I'd like to have a feel of it, maybe even taste it." Says my mother.
"You can't, he's your son so you mustn't even think about it."
"So why are you tossing yourself along with your daughter, then?" She asks.
"Well it's because the sight of you two has me turned on."
"You weren't until you saw John and his erection."
"Maybe you're right, it was magnificent wasn't it?"
"Should we all go and surprise him while he's doing it?" I ask.
"No - I have a much better idea. Wait until later and we will see what happens then."
"Oh, I was hoping to see him in your dress."
"Later, dear, for now, just be satisfied to bring yourself off with us. Look, your father is just about to lose it. Do it on the towel, would you dear?"
As he ejaculates a large white globule of sperm onto the towel on the bed, I can't wait any longer and join him in my climax. I can just make out my mother grunting to keep her voice down as she joins in as well.
It's a half hour later, and all four of us are down in the kitchen.
"So you're still up for the picnic this afternoon, then?" Mum asks both of her children.
"Of course, I promised I would keep the day clear, and I have. " I reply.
"Me too, and it's a lovely day, we might see some nice bodies out on display, eh Dad?"
"I'm hoping so. That's the best bit of a picnic on the beach."
"Ah - slight change of plans, guys." Says Mum, "We are going to the country this time. I've a field in my sights and I'd like to see some of the other types of birds that are available there. The beach only has gulls."
"And gals." Says Dad.
"Well I'm sorry, but it was my idea, so I get to choose the venue."
I'm thinking 'This is strange, even last night it was an afternoon on the beach, Mum had her swimsuit out and washed especially.' Hey ho, I don't really care where it is as long as there's food, and sunshine.
Slightly grudgingly it is agreed that she gets to choose where, and we all pile in the car. There seem to be more than the usual number of bags and boxes in the boot for just an afternoon picnic, but who am I to judge, I've never had to organise one before.