-- CHAPTER 5: Doghouse --
****
I awoke with my usual morning hard-on. The morning air was cold against my right cheek, the pillow reassuringly warm against my left. I snuggled deeper into the covers and their cocooning heat while pressing my naked chest against her naked back, feeling absolutely nothing to form a barrier between her skin and mine. As my senses came alive, the fingers of my right hand reflexively squeezed the firm breast I was currently palming as the arm wrapped around her body. And with that arm as leverage, I held her tightly while reflexively sliding my morning wood through the cleft of her bare buttcheeks.
"You're awake," my little sister murmured.
"Nngh," I grunted, technically no longer unconscious but not wholly alert yet either. But after a few seconds I became fully aware of where I was, who I was with, and what I was currently doing, and I stopped dry-humping my sister's butt and muttered, "Sorry. Didn't realize what I was doing."
"No, don't stop," Michelle sighed. "You seemed happy to be doing that."
I hummed contentedly, just pressing the length of my hot dog a little deeper into her buns. "I'm just happy to be here, holding you like this."
"I know what'll make us both even happiER," she replied, emphasizing the last syllable. "Can you slip into me from behind?"
"Seriously?"
"Uh-huh. I've never had morning sex before, but I wanna try."
"Sounds good to me." Shifting slightly on the bed, I pushed Michelle's right leg forward a bit and adjusted my own hips to get myself lined up. Her pussy lips were still somewhat closed, but I managed to notch my mushroom head into position and start pushing. My little sister moaned softly as I slowly pressed my way inside. It took a little while -- she was still SUPER tight. But after a minute or so, we were fully joined and I paused at full-depth to kiss the back of Michelle's neck.
"I love you, Chelle," I murmured warmly.
She actually clenched her cunt muscles around my cock, giggling as she replied, "I love you, too."
****
"You know what they call a couple that depends on the 'pulling out' method?" Alex asked later that morning over Sunday brunch.
Michelle and I exchanged glances, neither of us knowing the answer.
Alex waited a few seconds before answering, "Parents."
Michelle frowned, and I scowled at Alex. "Really? We had this wonderful night together, we want to share with our big sister, and your bright idea is to try and make her freak out about being pregnant every day until her next period?"
"Relax," Alex drawled with a smirk. "Our periods are pretty regular, like clockwork, and she's always a week ahead of me. Mine's due a week from Monday, which means she's due to start tomorrow. Even if you flooded her, her fertility window has long since passed and the odds of her getting knocked up are astronomical. So even if she were inclined to freak out, she wouldn't be freaking out for very long."
I shook my head and squeezed Michelle's hand. She'd been holding it almost non-stop all morning. "Is that true? You're not worried?"
She gave me a little shake of her head. "No, not really. I did the math, too. Plus, you've been pulling out."
I raised both eyebrows. "Still, we're gonna have to get you on the pill."
Michelle blinked and smiled. "Actually, I already took care of that."
I frowned. "What?"
"I didn't tell you, but on Tuesday I went to the doctor and got a prescription for birth control. I was going to start taking them the day my period started, which SHOULD be tomorrow. I'd originally planned to give you my virginity after my period ended in another week or so, but... well..." She blushed as her voice trailed off.
I squeezed her hand back. "I'm glad you didn't make me wait that long."
She gave me an apologetic look. "But you're going to have to wait a little longer to do it again. I'm sorry about that. I had hoped that once we started we would never have to stop."
Alex shrugged. "You don't HAVE to stop. Loverboy here can go buy condoms. And even if period-sex can get a little messy, it's 'doable'. I've done it a few times. Condoms help with that, too."
I made a face. I'd had period-sex a couple of times myself, and the blood was a serious turn-off. Michelle didn't look too enthused either.
"And then of course, he can put it in your ass. You certainly can't get pregnant if he blows in your ass."
Michelle's eyes flew open WIDE. "WHAT? Eww!"
"Sure!" Alex grinned and then frowned at me, only now seeing my surprised expression. "Wait, bro. You've never had anal?"
I popped my eyebrows, feeling embarrassed for some reason. "Uhhh... well..."
"Really?" Alex looked surprised. "Hot guy like you? Ripped abs and all? Never talked a girl into letting you into her butt?"
"It... uh... never came up."
"Wait, I can get your last cherry?" Alex popped up to her feet. "Oh, we are SOOO doing this."
****
"Fuuuuuuck..." Alex groaned gutturally, her eyes clenched shut as she concentrated on the feelings. She was reclining back against her headboard, knees up with her legs spread to the sides, giving us an unobstructed view of her entire crotch.
If you had told me a month ago that Michelle and I would be in our big sister's room watching her insert a series of increasingly-sized butt plugs into her anus while buzzing herself with a pink vibrator, I would have threatened to cut your balls off for suggesting something so filthy.
My how times had changed.
"We are NOT talking about this tonight with Mom and Dad," Michelle intoned quietly.
"Well, they DO keep asking me if I'm taking good care of my sisters," I quipped. Michelle backhanded my upper arm.