It's so difficult trying to get to sleep. And things are only going to get worse when my brother Mike gets in bed with me. I wish mummy and daddy had more money so we wouldn't have to live in this trailer and I'd have my own bed.

He's going to be up to his usual tricks again tonight I'm sure. He's always grabbing my ass and breasts and just squeezing me whenever he likes. Trying to get away only makes him do it more, the best thing to do is always just to sign and let him carry on until he moves on.

He never really does it when mummy and daddy are around and when I do complain to daddy about it he just laughs and says, "leave your sister alone." I guess it's not a big deal really. He's just messing around.

I do like their compliments too. They always tell me I have big knockers for my age and a huge fuckable ass. I think my ass is too big and fat, it doesn't fit into any of my clothes properly and always sticks out. That's why when Mike tells me he likes my bum it does make me feel better. Although I do sometimes wonder if he's just making fun of me.

Sometimes he's just silly. He says stuff like "you'd be a good fuck." I always frown and pout and tell him not to say such dirty things to his sister but it never works. He just laughs and pokes and slaps my ass and sometimes tickles me, using the distraction to very unsubtly feel me up.

Oh, I can hear him now. He just got in. I feel like I've been awake for the last hour. Huh, I can hear him stripping off completely. Oh, he's jumped straight in bed with me. I was hoping he'd keep his boxers on but I know he has his habits. Damn, it's such a hot night. I'm already sweating and now with Mike in bed it's only going to get more sticky and uncomfortable. My pajamas feel horrible and clammy.

"Hey Mike"

"No I'm not taking my pajamas off, I know it's hot but I'll be okay."

"Mike! Stop pulling my pajama bottoms down over my ass!"

"Ugh, okay just a little bit but only because it's so hot in here."

"Oi! I can feel that!"

"You're feeling up my bum! Stop being silly Mike!"

She smiled in the darkness. 'Don't be silly Mike."

"You've pulled them all the way down! Fine, fine. Let's go to sleep now."

'Um, what's that?'

'Mike, is that your -- your penis?!' She gasped.

"Oh, I'm sorry!'

"Let's go to sleep, let's get some space."

'Well, your hand is okay I suppose, But your... penis is poking me in the bum.'

"It's got nowhere else to go? Can't you think of baseball or something?'

'Hey! What do you think you're doing? You're spreading my bum and pushing into me!"

'I thought you were going to go to sleep. I think you should sleep on the couch.'

"hahaha, Mike stop tickling me! You're so silly--"

"Oh my god! I can't believe you just did that. You pushed your penis up my bottom!"

"Mike, that's enough messing around. You should take it out now.'

"Huh? What are you talking about, you're not even properly in.'

"Oh! I didn't mean to push it in all the way. How much more is it? A few more inches.?

'A few more inches.'

"Hmm, Mike, I'm not sure I'll sleep like this, you know. Are you going to go soft soon?'

'Well? You feel just as hard to me.'

'What do you mean release yourself?'

'You are already in my ass.'

'Oh. A guy can do that inside an ass too?'

'I suppose it doesn't sound so bad. You sure it will help?'

'Okay then. Do what you need to do.'

'Uhhh -- it feels -- it feels so weird, kinda good I guess, yeah. I suppose you can keep going, but only this time.'

'I never knew a girl could actually take it in the bottom. I thought stuff about that was, I dunno, joking or something. Is this, uh, normal?'

'Are you going to orgasm in my bottom?'

"Say what?"

"Uh, okay, if it will help. Cum in your sisters huge fat asshole. Make my ass your buttpussy. Orgasms in your little sister's sweaty buttpussy. Oh, I can feel something happening!"

"Is that good? Bum me harder Mike!"