My sister sat on top of me, her nude body glistening with a sheen of sweat. I slid my dick in and out of her quivering pussy, pushing her towards another orgasm. Her fingers dug into my chest as she crested again, her body trembling throughout. Jess collapsed on me, panting in my ear.
“Cum, big brother,” she said playing up the taboo angle of our relationship. She did that occasionally, knowing how it excited both of us. “Cum inside me. Please.”
Not that I needed any encouragement. I’d been fighting the urge to cum for a while, and her words broke my defenses. I wrapped my arms around her, holding her close as I released inside her.
“Oh yes. Yes yes yes,” she whispered in my ear as she felt me cum. “Fill your little sister up.”
We lay there, out of breath and soaked in sweat for several minutes. My slowly deflating cock staying in her as long as we didn’t move much.
“You know.” I said looking up at her, “You used to get upset when I called you my little sister. Used to argue that I was only thirty minutes older than you.”
“Well, that was before you deflowered your sweet, innocent, little sister.”
“Innocent? Oh, that’s rich!” I laughed, getting a sour look from Jess.
“Oh you asked for it!” she yelled as she pounced on me.
The problem with being intimate with your twin sister is that she knows each and every sensitive and ticklish spot on your body. With practiced ease, she found them and attacked. I convulsed and contorted myself trying to get away, howling with cries of laughter. Oh, it was on.
I reached down and found her most ticklish spot and went for it. With a yelp, she jumped up and off me, clutching her midsection for protection. Something warm and wet splashed across my thigh as she did, and we both looked at a trail of my semen that had poured out of her as she leapt.
“See what you did?” we said in unison, breaking into laughter again.
We both laid our heads on the pillows and sighed, relaxing and holding each other. It had been four months since we got back from our Obsidian trip. Four months since we confessed our true love for each other.
“Whatcha thinking?” I asked.
“How glad I am Mom and Dad took that vacation.”
“Especially since we have to pick them up at the airport, so no chance of them coming home early and catching us?”
“Exactly!” She said, stretching. “What about you?”
“Just marveling that it’s been a little over four months now.”
“Yep.” she grinned, hugging me. “Still happy?”
“Exceptionally happy,” I said, gently playing with one of her nipples. “So what do you want to do today?”
“Lay here and let you molest me all day long.” she signed contentedly
“As much as I would love that too, we have afternoon classes.”
“Spoilsport.” Jess sat up, grinning. “But you know. It’s not afternoon quite yet.”
Jess slid down and took my semi-rigid dick into her mouth. Slowly, steadily, she sucked me back to fully erect. She was right, we had plenty of time.
*****
Later that night I woke up with a start. Reaching over, I felt the empty spot where Jess usually was. Jess had been sleeping in my bed almost constantly now. Our parents had long ago stopped checking in on us at night, especially since she would be in my bed half the time anyway. Still, we rarely slept nude when they were home and we took great care to act like we normally did. When they were gone, however, we had a lot more freedom.
I looked up and saw Jess sitting on the bay window bench, her face and pert breasts illuminated an eerie shade of bright white from the glow of her laptop.
“You okay baby?” I asked, surprising her a little.
“Yeah, just couldn’t sleep,” she said sadly.
“What’s wrong?” I asked as I got out of bed and walked over to her.
Jess scooted up a little, letting me sit behind her. She leaned back and angled the screen so I could see as well. On the screen was the inmate page for Margaret. Her short cut blue-and-black hair was unmistakable. Her eyes were red and puffy, like she’d been crying before the picture was taken.
“Why are you looking at this?”
“I can’t stop thinking about her Jace. I mean, why the hell did she do it?”
“I don’t know. I’ve been trying to figure it out myself, but we may never know.”
Jess reached around pulled my arms around her, kissing the back of my hand before laying her head back on my chest. Slowly, she shook her head and sighed.
“No. I can’t accept that. I have to know.”
“Unfortunately, there’s only one person who really knows,” I said pointing at the screen.
“Yeah,” she said wistfully, then her head snapped up. “Yeah. Yeah, you’re right. She knows!”
“No,” I said reading her thoughts. “No. That’s a bad, bad idea, Jess.”
“Why? We can get the answers we need.”
“Do you think you can face her?”
“Yeah, I do. I did when we were with the lawyers. This time she’ll be behind glass and can’t touch us.”
“Maybe.”
“Plus,” she said, leaning her head back and whispering in my ear seductively. “If you cum inside me before we go I know I’ll be okay.”
“You are such a dirty girl,” I said, my hands cupping her breasts and rolling her hard nipples between my thumbs and fingers.
“I’m your dirty girl,” she breathed. “But now I’m also a wet girl.”
Jess closed the laptop and spun around on me. She slid down and took my cock in her mouth, bringing me to full hardness in a few moments. I rested my hand on the back of her head as she bobbed up and down, making sure I was fully wet.
“Oh God, that feels so good baby.” I moaned.
She raised her head, my dick slipping out of her mouth with a wet pop. She smiled as she stood me up, turned me around, and pushed me back onto the bed. Straddling me, Jess leaned down and kissed me while her hips lifted to allow me to enter her. She reached back, positioned the tip at her wet entrance, then slid down my shaft until I was completely inside her.
I reached down to hold her up, but she shook her head. Jess took my hands and held them against the bed beside my head. She started rolling her hips, sliding up and up on my cock. As she rocked against me, she started going faster and faster, clenching her vaginal muscles around me. I felt her legs tremble as her orgasm grew closer and closer. I started thrusting my hips in time with her, trying to help in any way I could. Her moans grew louder and her movements became more erratic and forceful, finally thrusting one last time and grinding against me. She threw her head back, eyes closed and mouth open, breathing ragged and halting. I felt her pussy spasm around my cock, and I kept pushing into her as she came.
When she cooled down, she collapsed onto me, panting. I kept thrusting into her slowly, enjoying how she felt while I ran my hands up and down her back.
“I love watching you cum,” I said when she finally raised her head.
“You make me cum so easily,” she responded, kissing me gently. “I love feeling you inside me.”
“I’m not going to last much longer.” I cautioned.
I started thrusting faster and faster. Her breasts jiggled over me as her body shook with my thrusts. She squeezed me with her muscles, and I felt my own orgasm nearing. With a final push, I plunged as deep as I could as I released my cum inside her. I held onto her, pulling her against me as I spasmed inside her.
“When you cum inside me,” she said once I opened my eyes again, “I can feel every spurt. It’s a warm, tingling flood inside me, filling me. It’s amazing.”
“Feels kinda squishy to me right now.”
“Well, you made me all messy and gooey inside now.” She slid off of me, resting on her side. “I love these late night fucks.”
Chuckling, we re-positioned ourselves on the bed and went back to sleep in each other’s arms.
*****
Unfortunately, you can’t just show up and visit someone in jail. As it turns out, they have to approve you to visit them. So Jess and I sat down and wrote a letter to Margaret. I’ll admit that it was a rambling mess, but we basically introduced ourselves and let her know that we have questions about why she did what she did. We ended the letter saying that we hoped she would respond. As a gesture of our goodwill, we told her we would add one-hundred dollars to her prison commissary.
We sent the letter, then waited several days until we were sure she had received it before we deposited the money in her account. We figured that the worst case scenario was that we made ourselves feel better and wasted a hundred bucks.
We received a letter back in three days. In neater handwriting that we had expected, her response was short and to the point. She didn’t answer our questions, thank us for the money, or apologize for what she did. However, she also didn’t tell us to leave her alone, didn’t tell us to go away, and in the end, she did respond. We read it together a couple of times.
“Well,” I said, “at least she didn’t tell us to go fuck ourselves.”
“Yeah. Too bad.” Jess nodded slowly. “Would’ve been nice to finally get permission from someone.”