Debra sat cross legged on the bed, looking at me. She smiled. "We did that well, didn't we, Uncle Bob?"

"We did, toots." I winked and reached out to her. "Come, lie down with me. I want to feel you against me."

She moved like water, flowing from her seated position into my arms, her head resting on my shoulder as she threw one leg over both of mine. A deep, contented sigh escaped from her as she held on to me. "I don't ever want to leave here, Uncle Bob."

I knew that and I didn't want her to leave either, but she was twenty-one by now. "I'm leaving that up to you. Maybe you run into a cute boy tomorrow and you'll forget all about me." I tried to be casual about it, but every word of that last sentence was like a kick in the balls.

Debra had lived with me since she was fifteen. Her parents had abandoned her; her dad by leaving his family. He'd trashed the living room and mentally ruined my sister, who is my twin sister. She'd been committed into a home and there still was no chance of her getting out. No one had ever been able to figure out what had happened, not even me, despite the many visits. It was simply impossible to get through to her.

As there was no one else to look after Debra, I had offered to take her in, although I had no experience with teenagers. I was thirty-two years old myself back then and I had never had a wife or such responsibility, because life had gotten in the way. Somehow that was approved, which stuns me to this day, and I don't regret a moment of it.

"Never, " Debra said, lifting up her head a bit and giving me a look that didn't last long. She slapped my chest. "I don't want a cute boy. I want you. You're the other part of mom."

The other part of mom. She said that so often.

I stroked her hair. "I know, toots." She loved it when I called her 'toots'. She'd told me it calmed her down.

She wiggled a bit, pressing her boobs against my bare chest and sighed again. "I'm happy here, Uncle Bob. I'd marry you if I could."

That statement was new. I'd heard her say lots of things in the six years she'd been with me but this topped many of them.

"But I'm an old guy, toots, and you're a young flower."

She snorted. "You certainly don't screw me like an old guy, Uncle Bob. I'd say that sex with you only got better over the years." She reached out and toyed a bit with my now flaccid cock. "I know you're thirty-eight. Like mom is now. But that's only seventeen years between us." Again she looked up at me.

"Only? That's more than half your life, toots, " I said as my member got hard again. This girl had a way of making that happen whenever she wanted, even after a massive fuck session like we'd just had.

"Huh. I don't care." Debra squeezed my cock hard, which was fine. It could take it in its current state. "I love this thing in my hand." She giggled. "I love it in my pussy even more."

"I know..."

*

[Flashback]

I thought back to the day she'd come home with me, after I had picked her up from the family who had taken her in after someone had found her at home. The living room had been smashed up, my sister had been sitting in a corner of the room, beat up as well and complete apathetic. Debra's father was nowhere to be found.

From the first night in my house it was clear that Debra didn't want to sleep alone. She would cry and howl until I picked her up and put her in bed with me. The way she'd held on to me was endearing. I had held her in my arms and soothed her as well as I could. Through some miracle she fell asleep quite soon. I didn't sleep a wink that night.

[Flashback ends]

*

"Hey." Her voice dragged me back to the bed where our naked bodies lay against each other.

"What hey, " I said. "At least Mr Hey, okay?"

"PFFFRRTTT" She made a disgusting sound against my cheek. "Do you mind if I get on top of you one more time?"

"Jesus, toots, is your pussy made of Kevlar? I just gave you a fuck that the neighbors must have heard."

Debra sat up, then swung a leg over me. "That was just to warm up. Now the whole street will hear us." She pressed my cock against her labia and rode up and down against it. "Does that feel like Kevlar?" She grinned, and again I was stunned by how much she looked like her mother when she was about her age. Her hair, her face, even her figure and light skin tone, which was a family trait. Even the size and shape of her boobs. Without the age difference, Debra would be more of a twin to Erika than I was.

She lifted her butt up, pushed my cock down a bit, and impaled herself onto it with practiced ease. "I... love... this... Uncle... Bob..., " she said as she moved up and down slowly, speaking in the rhythm of her pumping. She squeezed her boobs and pinched her nipples, as I watched her pussy split open a little each time she came down on me.

Suddenly she stopped and looked at me in that particular way that meant something had come up in her mind. Usually it was something important, so I asked her if anything was the matter. Debra looked down at where we connected, turned her face back to me, and sort of smiled. "Just thought of something." Without an explanation she resumed her humping me, and started fingering herself so she would get off quickly.

That didn't take long, and once she'd summoned her orgasms, she let herself fall on top of me and stayed there until she was done. The muscles in her vagina quickly pushed my cock out, which was fine. I delighted in her being here and the feeling she went through, and put my arms around her.

*

[Flashback]

As we went to sleep the second night of her being here, Debra asked why I didn't wear anything in bed. I explained that I liked that better and it made me sleep better too. Immediately she sat up and took off her nightgown.

"If you do that, I want to do that too." She'd been silent all day, so her sudden questioning me was surprising but welcome. It was understandable she'd been silent. She'd been through a lot, and the day had all been about arranging things for school and so many other things. It was a blessing that I had just changed jobs. The new one let me do a lot of things from home. My previous job would have made this impossible, and my brother and his wife were in Chile for his work, and they'd be there for many months.

My eyes drifted over her young body. The small breasts and the hard nipples. As if she didn't know shame.

"Is something wrong, Uncle Bob?" she asked.

"No. I think you're pretty, Debra. You're a real child of your mother."

It was remarkable how much she looked like Erika, as if she'd inherited everything from her except her dark eyes. Those were her dad's. And good for her, because the loser had never married my sister, and he turned out to be a super narcissist. I knew things would end badly if I ever ran into that guy.

"Pretty?" She looked at me as if she didn't believe it. "No one ever said that to me."

"Well, then I'm the first. Come. Lie down. Sleep. We have things to do tomorrow, and then you can go to school again."

She nodded and lay down against me, cradled in my arm. "Oh." She got up again and kissed me on the cheek. "Night kiss. I always gave one to mom. That's okay, right, Uncle Bob?"

"Of course, toots." That was the first time I called her that.

She giggled. "I like that. Toots. I'm toots." She lay down again, and the sensation gave me a near electrical shock. My seventeen year old niece was in my bed. Naked. And I was naked too.

I felt her boobs against my side and my cock responded. Quickly I put out the light and hoped she hadn't noticed. "Good night, toots."

"Night night, Uncle Bob." She wrapped an arm around me, her head on my shoulder

[Flashback ends]

*

"Wow." Debra sat up and looked at me. "That was a fast one." She raised her fingers to my mouth and I licked them.

"And all that before breakfast, " I said. "We should fix that."

"Yeah. I'm a bit hungry, " she agreed, which was not surprising after our morning exercises.

We got up and prepared things in the kitchen. Together as almost always, and nude as almost always. I asked her if she had plans for the day.

"Not really. Grocery shopping together and then some more studying. And perhaps another fuck? Or two? If my old uncle can handle that?"

I knew she was teasing me and slapped her bare butt. She shrieked for fun, not because it hurt. No dad could be more proud of his daughter than I was of my niece. After all the hardship we had gone through, she had picked up school again quickly, passed all exams with fabulous notes, and then she'd gone on to become a laboratory assistant. She was very good with that too, and now she had a part-time job at the lab where she'd done an internship, doing that next to the last bit of studies she had to get through.

I pulled her into a hug.

"Hey, you're suffocating me!" she yelped, but laughed too. "What was that for?"

I rested a hand on her butt. "Because I'm proud of you, toots. My niece, the lab assistant. And soon to be a laboratory professional, doctor, whatever it's called."

"Oh. Yeah. Almost, huh? That why I'm still studying." She blushed and looked at me, her face showing her pride. "And here I was thinking it was a hug because we have such great sex together."

"Come here and let me give you another one, little rat!" And I gave her that extra hug.

After breakfast we dressed and got ready for the grocery run, but I had to wait. Debra had to get her 'rattler', which was a butt plug with a metal ball inside, a geisha ball, that vibrated inside her while she was walking.

Debra always surprised me with the way she dressed. None of her outgoing sexual self showed from her modest, almost dull clothes, as if she didn't want to attract any attention. I was convinced it was to turn boys her age away from her, which worked all the time. And only she and I knew about the rattler in her ass.

*

[Flashback]

The grocery shopping together had started very soon too. The first time when she'd come to stay with me, I had told her I'd be back soon. That stuff usually wouldn't take more than an hour, and alone I could do that quickly.

"Are you comfortable staying here, toots?" I had asked.

"Yes, Uncle Bob." She had sounded confident, but when I came back she was a blubbering mass of misery, rolled up in a ball and constantly crying.

Before I could put the groceries away, I had to carry her to the bed and lie there with her for a while before she calmed down. After she'd managed to unroll from her ball, I got to undress her. Having her skin against mine seemed to have a very calming effect on her, I had found that out soon, and she had started to love being naked around me.

"Hey, toots, feeling better?" I asked after holding her against me.

"Yes, Uncle Bob."

"Care to tell me what happened? Did something scare you?" I knew she was still very sensitive to things, but me leaving for an hour had seemed safe. She had most of the stuff from her old home that she'd wanted, and we'd gotten a few new things too. Things without bad memories attached.

"I think I scared myself." She lay on top of me, half straddling me. Her nipples stroked my chest, her warm weight on me was wonderful, and my cock responded. She didn't notice it. "I was watching TV, and then there was something of a house with broken furniture and then I thought back and..."

She fell silent as tears appeared again.

I pulled against me, her head against my shoulder. "It's okay, toots. Cry if you need to. It's safe here. I'm here for you, you know?"

She nodded and sobbed a little more, but she didn't need to cry any more. Then it happened. She moved her legs. "Uncle Bob. Is that you?" She wiggled her hips with my stiff cock between her thighs. "That is you, isn't it? Can I see it?"

Debra didn't wait. She rolled off me, kicked the covers away and looked at my erection. "Wow." She beamed as she looked at me. "Did I do that?" Without hesitation she wrapped a hand around my cock. "And it's hard!"

On one hand I was glad that her sadness had disappeared, but this other side had not been planned. And there was no way back, because she was fascinated by the hard pillar in her hand.

[Flashback ends]

*

After the groceries we got out of our clothes, as usual, and I started cleaning. Debra sat at the dinner table with her books and her computer, and her sighs became louder and louder.

"Is it difficult, toots?"

"Meh. It's just not happening. I get it all, really, but I don't get it. You know what I mean?"

I stopped cleaning to resolve this and sat down with her. "Completely."

She looked at me with her dark eyes. "Bullshit. You don't understand a word of it." As if it had a mind of its own, her hand reached out and played with my cock, which did its stiffening duty quickly.

"Exactly. I don't get it but I hoped I could motivate you." I ran my hand through her hair.

She grinned, got up and straddled me. "I need a break, I think." She rubbed her pussy against my cock, and soon it was inside her. It was so easy, so normal for us. "Can I ask you something?"

"You can. Others can't."

"Pah. There's no one else here. Also when it's very... personal?" She looked me straight in the eye as she slowly moved up and down a bit.

"Also when it's very... personal." I was curious what was on her mind.

"Did you ever..." Debra frowned. "Damn, this is so weird to ask." She even stopped humping me, so this had to be important.

"Just throw it out, toots."

"Okay. Did you and mom ever have sex?"

I had never expected that question, and it shocked me. I'd always been open and honest to her, so I had to be that this time as well. "Yes. We experimented a few times. When we were young."

Debra nodded and didn't appear to be shocked or surprised. "You were sixteen, right? Or just turned seventeen."

Another question that came like lightning from a blue sky. "How do you know?" I had a suspicion, because Erika was always as honest as I was.

"Mom told me about that a few times. She liked talking about it." Debra looked dreamy for a few moments. "She said you two had really good sex. And you were always careful."

"Yes. Except once, " I remembered. That time I had gotten off inside her. Small mistake in timing during one of our first times. We'd been drunk and she'd only laughed at it.

"Twice, " Debra knew. "The last time she had just met... him." Her face clouded over. For some reason her pussy squeezed my cock.

I remembered that time. We had sex once more. Erika had asked for it. Shed told me that her new boyfriend, Erika's dad, had never been able to satisfy her, and I could. "Yes, you're right." That had been the other tim I'd gotten off inside my sister. It was weird telling this to my niece while we were fucking on a chair in the living room.

Debra nodded. "Mom told me that he once tried to fuck her, and that went all wrong. He couldn't get it up, and she helped him. Then he got mad and got off much too soon. Everything landed in her face."

A feeling came over me. "And why are you telling me this, toots?"

"After that one time they always slept apart, Uncle Bob."

"No, that can't be, Debra. He's your dad. You have his dark eyes. You're wrong." But was she? My heart rate went up a bit.

Debra wrapped her arms around my neck and held me tight for a while. "His weren't that dark. Yours are, and they're the exact same color as mine." She kissed me on the cheek and then on the mouth, long and deep, while taking one of my hands and putting it on one of her boobs. Slowly she started moving up and down again on my cock. "I love you, Daddy Bob..."