She!

I tiptoed into the bathroom, locked the door behind me, and turned the light on.

I moved quietly into the boys' room and shook Billy gently. He groggily came out of sleep, as he usually did in the mornings when I woke him, but his eyes quickly opened all the way.

'Wow! You did it!' he said. I looked over at the other twin bed and saw Marshall turn in his sleep. I held my finger up in front of my mouth for silence and then turned to the bathroom. He edged his way out of bed wearing only his shorts and white tee-shirt and followed me.

I went all the way into the bathroom and turned at the door to our room before I lifted my nightgown over my head. His eyes were huge as he watched. I put my thumbs into the sides of my panties and pushed them down my thighs and let them fall to the floor. His hand again immediately came toward me – this time to my front below the waist.

'Careful now,' I whispered, blocking his first advance.

'Yeah, okay. I will.' He looked as his fingers went into my pubic hair, brushing across it and triggering little nerve explosions. 'Wow! You're beautiful, aren't you?' I just smiled.

'I've got to see closer,' he said as he got down on his knees in front of me. I could see his hard little penis straining at his underpants. 'Put your foot up on the edge of the bathtub so I can see,' he directed. I did it and he leaned closer.

His fingers went between my legs, tracing my labia as my wetness began to open them to him.

'You don't have any dick, do you?' he noted.

'Sort of,' I said. 'It's a girl one. Little tiny. But it's there.'

'Really?' he said, looking for it now. He wasn't disappointed as my clitoris hardened with his searches. 'Yeah. There. I see it.' His thumb and finger found it then as they had my nipple the last night.

'But I've got more,' I said. 'Look down a little ways and you'll see my pussy.'

'None of the pictures I have show that part. Just the hair and stuff. And the titties, you know?'

'Well, it's there.' I spread my labia for him until he could see it.

'Yeah. I see.' His finger found my hole then and delved into it. 'It's all wet. Did you wet yourself?'

'Huh uh. That's supposed to be there. To make it easier for you to put your finger in.'

'Oh,' he said as he probed into me. 'It smells funny, too.'

'Uh huh. But good, huh? It tastes good, too.' I licked my lips in anticipation.

'Really?' He took his finger to his mouth and tasted. He shrugged.

'It tastes better directly,' I said. 'Like if you lick it.'

'Really?' He tried it by licking rather crudely at my pussy. 'Yeah. It's okay.'

'It really feels good,' I said.

'Yeah?'

'Uh huh. And you can put more than one finger inside me, too, if you want to.' This time he didn't say anything. He just put two fingers in my pussy and, finding they fit okay, put three in. That stretched me a little. Pleasantly. He moved them around inside me as he lapped at my oozing come. 'Lick there and on my little penis and I'll have an orgasm,' I whispered. He mumbled against me and started licking harder. It took only a minute before my climax washed through me.

I stopped his moving head and pushed his hand out of me when it had passed.

'Thanks,' I said. 'That was neat.' He stood up then, returning his fingers to my nipples as he had the night before. He rolled and played with them as he talked.

'You have really neat stuff to play with,' he said. 'And lots of different stuff, too. All I've got is my dick. That feels okay when I beat off but I don't think it's the same.'

'Sort of,' I said. 'But maybe you don't have as many sensitive places as I do. My turn now, okay?'

I got down on my knees and pulled his underpants down. He blushed wildly but he didn't move away. I ran my fingernails over the skin of his penis until it was bounding up and down with each movement and he was moaning lightly.

Then I held his testicles in one hand and moved them around as I put my other arm around his thigh. My mouth just naturally went over his hard little dick. He groaned with the feeling of it. It wasn't full grown yet, I knew, but it was fairly good sized.

'Oh, wow!' he said as I sucked on it. Then I started moving it in and out of my mouth, letting it contact the back of my mouth with each forward thrust. It only took a minute before his body clenched and I tasted his young come in my throat. Finally, after about a quart had been pumped into my mouth, he stopped and it got tender. I just kissed it as it softened.

'Wow, sis,' he said. That was the first time he'd ever called me that. 'That felt great. Was that how it felt when I did it to you?'

'Sort of,' I said. I knew exactly since I had been a male human and knew the female feelings were much more intense and long lasting.

I stood up again, letting him put his hands on my hips and hold me to his body. I was a couple of inches taller than he was still and felt his bony little shoulders on my breasts. I held him tight for quite a while before he let me go.

'Just in case, I better go to the bathroom and then I'll go back to bed so you can take your shower.' I nodded, hugging him again.

'Thanks for what you did to me. And Billy?' He looked at me then. 'Thanks for calling me sis. I like that.'

'No problem, sis,' he said with a grin.

The next Friday, Minni went to her eighth grade prom and Phil and Molly went out to dinner and a movie, leaving the boys and me alone. It was really a little uncomfortable since we just watched TV but every time Marshall went to the bathroom or went for a glass of milk or anything, Billy put his hand between my legs and started rubbing me.

I was scared to death Marshall was going to catch us. And then it happened.

Marshall was laying on the floor watching the show and Billy secretly reached up and tweaked my nipple. I gasped and Marshall turned around and looked at us.

'Hey, you guys,' he said. 'You know I watched you two last weekend. I saw what you did.' It sounded like he didn't approve.

'So what?' Billy said. I just wondered what the little boy had thought of that sight and exactly what he'd seen.

'So unless I get to do stuff too, I'm telling.'

'What stuff?' Billy said sarcastically.

'Stuff like you were doing. Kissing each other and looking at everything with your clothes off. You know.'

Billy looked at me for guidance but I didn't know what to do.

'What do you mean, Marshall?' I asked.

'I want you to kiss my peepee, too,' he said. 'And let me kiss yours, too. Like Billy did.' He was jealous.

'You're too little,' Billy said dismissively.

'Am not!' Marshall protested. 'I can do anything you can!'

'Okay, okay,' I said then to stop the dissent. 'What do you want?'

'I told you,' he said. 'I want to see you like Billy did. With no clothes.' I squirmed nervously. I didn't really like the fact that Billy had looked at me and that, now, he kept touching me at totally inappropriate times and in inappropriate locations. How much worse would it be if Marshall joined in?

'I don't think you should, Marshall,' I said. 'It's not good. Really.'

'Well, I think it would be,' he said with a frown. 'Anything Billy gets to do, I get to do too.' He was adamant.

'It's only fair,' Billy said beside me. 'So what do you want?' he said to his brother.

I could see that he didn't know what he wanted in practical terms. Then he seemed to make a decision.

'Come down here on the floor with me.' Billy stood up and reached for my hand, almost pulling me to my feet. He led me to a spot near Marshall and then sat down cross- legged on the floor next to his smiling brother. With a sigh, I sat down beside them.

'First, take your shirt off, like you did for Billy.' I hadn't really done that but I knew what he meant. I crossed my arms in front of me, grabbed the hem of my tanktop, and pulled it off over my head. I wore nothing under it. His