Sis was crazy in need during her pregnancy

I am 18, she is 19. Kate before pregnancy was super hot. Always was. She and I shared a bathroom and she always left the door open. She usually dressed in the bathroom and didn't care that I saw her fabulous body, her brunette haired pussy and her B cup tits so firm and no sagging. One night she came in, you could tell she was high or drunk. She came into my room, I'm in bed and naked. She marched right into the bath, turned on the light and took off her skirt and panties. She grabbed a washcloth and ran some warm water. "Look what that fuck did to me" she said. "I don't see what you are talking about" I told her. With that, holding the warm cloth she walked to the head of my bed and her pussy not a foot away, she spread her legs, thrust out her hips and spread her pussy. White cum was all over it, even in her pussy hair. "The fuckshit came in me, and all over me. He came a ton too, way more than any guy I've ever fucked". She was right it was all over her, I'd have to fuck three times to get that much cum. Of course I'd not fucked anyone yet, though I tried, I did get bjs from two girls including my current GF but she wouldn't let me fuck her. "Here, wipe it up" she said as she threw the wet cloth in my face. I picked it up, and forgot I was naked. I sat on the edge of the bed, then realized. I tried to bring up the sheet to cover "Fuck off, you don't need to cover, DAMN your cock got big, that's hot" she said still stoned. I wiped up her pussy, got more water and she followed me into the bath and it was there that I washed up her pussy hair of the cum. "That enough?" I asked. "No, you need to get more out of me" she said. "How am I supposed to do that?" was my question. She put two fingers into her pussy and moved my hand with the cloth in between her legs. More and more cum came out. "You do it, use your fingers". It was the first time I got to stick my finger into a pussy. I was only allowed by the GF to feel around the outside. I circled my finger around, then two and pulled out more cum.

Finished she went off to bed naked. The next morning, in the bath, both of us there naked she thanked me and told me she told the guy not to cum in her, wrong time of the month. "I hope the fuck that asshole didn't knock me up" she said putting on her makeup. "Will you have to get married?" I asked. Hell, she didn't even know the guys name. She definitely wasn't getting married, IF she could even find him again. I asked and she said she'd have the baby, maybe do adoption. Six weeks later, her walking through the bath to my room naked she crawled into bed with me. I was also naked. I asked why she was crying. "I'm knocked up asshole, that's why". She slept with me as much as we could with parents around, though we locked our doors. We weren't having sex but knew it wouldn't go over well. She told our parents about the pregnancy, made her plans to adopt and as she grew a tummy at early 4th month she reached over and started rubbing my cock. I turned toward her and looking at her face with moonlight coming through my blinds.
"I need it Tom, I really need it".
"Need what, and you should stop before it gets too hard"
"Nothing wrong with that, I'll be it feels really good"
"Well we are brother and sister"
"I know but I need it, I want sex, I'm pregnant and can't get more pregnant but I NEED to get fucked"

I didn't wait, I started kissing her, feeling her tits, her slightly growing belly, down to her pussy. "Lick me first will you:?" she asked. I kissed my way down her firm tits, her round belly and to her pubes. I kissed them, then her pussy lips. She spread her legs and opened up her pussy. Pointing to her click she told me to lick there really fast, then some all over, down at the hole, then back up to her clit. I did as she wanted and she came quite noisily twice. Then she pulled me up and spread her legs, pulling them up a bit at the knee. "Is this your first time, or does connie let you fuck her?" I told her that it was my first. "Then look, just put it in and fuck and cum as fast as you want. We'll do it later and you'll learn to last longer and make me cum too. For now you've licked me so now fuck me". That is what I did. Not proud to say I came in probably 10 minutes. She made me lick her pussy again, despite that I'd already cum in it. I wasn't a fan, though I wanted to fuck her again. That second time she came from licking and from fucking.

Kate is in her 6th month now and we fuck everyday. I love seeing her pregnant belly, I love fucking my sister, and more than that I love fucking her pregnant body. She got so bad off, she said she hardly ever does it and never wanted it, but she started wanting me to fuck her in her butt. I love that even more. Parents were away for 3 weeks, we spent most of the time naked. Her playing the perfect little wifey, cooking, cleaning, doing the laundry and of course letting me use her pregnant body, mouth, pussy and not ass. I'm falling in love with her, and I told her that. She said she is in love with me too.