“But you let him put it in you with no condom...” Kira said, a bit put off. “Why was that okay?”

We'd been discussing whether she thought she was ready to have intercourse with her brother. Although the sadness from losing Jackie again had lingered, the morning's love making had gone a long ways towards bringing me back to life. While Dex showered, Kira had asked me if I thought she and Dex could fuck.

“I know,” I responded, “I know... I... I shouldn't have...”

“Could he get you pregnant?”

I shrugged, “possibly..”

“Mom...” Kira said softly, “how is that fair? At least I'm on birth control...”

“But...” I started before pausing, “he... he might have an STI...”

“Seriously, do you think that's likely, Mom?” Kira said, narrowing her eyes.

“Possible... he has been with Donnie...”

“Yeah, but... they didn't fuck or anything.”

I let the curse word go without comment. I'd certainly used it that morning in the heat of the moment, and after what we shared, it seemed silly to try to censor her words. “Still possible, Kira... you can get them that way...”

“Hmm...”

“Admittedly... not likely...”

“Please, Mom,” Kira pleaded, “let me have sex with him naturally... like you did this morning... twice.”

I exhaled a heavy breath. “Yes... okay.” I honestly wanted their first time to be as amazing as possible, and as much as I had advised them otherwise, I knew the extra thrill of letting a man fuck my pussy bareback, and I understood deeply how wonderful it felt when he came inside me. “Fine... I think that's... fine.”

Kira smiled and kissed my cheek. “Okay... thanks, Mom.” She leaned back in her chair. “I'll talk to Dex... he might need a day to rest after this morning... could you believe how much he came?”

I shook my head, grinning suddenly, “no... your brother has big loads I guess. That was... that was so hot, Kira... I've never, ever done anything that hot before. You eating your brother's cum from my body...” I shuddered, my pussy becoming wet at the memory.

Kira grinned, “I know... that was hot. So hot... Mmm...”

- - -

Kira and Dexter decided they wanted their first intercourse to be the next morning. I admit it made me giddy to imagine seeing my son and daughter mating. I'd come to know both their bodies intimately, and after feeling Dex's cock in my pussy, I knew Kira was going to experiencing an amazing pleasure taking him inside her virgin hole. I was wet all night thinking about it.

We woke together and I suggested that they shower. I helped Kira trim her pubes, leaving a fur outline around her slim labia and above her clit. It was all I could do not to go down on her after rinsing her off. My daughter's young pussy was so tempting and beautiful. I couldn't wait to see Dexter's penis slide inside.

They came back to my room wearing nothing. Kira was blushing and grinning, Dexter, too, wore a shy-but-eager expression. They both sat on the bed next to me, and I said, “so... how do you want this to go, you two?”

Kira spoke up. “I like when you tell us what to do, you know... so we learn...”

“Me too,” Dexter added, “yeah... I'd like that.”

“Okay,” I said, flushed and already smelling my wet pussy in the air. “I'll do that only as needed, you should both decide how you proceed, but right now... just relax and touch and kiss each other. Your first time should be sweet and special. I'll just sit over there and let you enjoy this moment.”

I got off the bed and leaned back in an oversized recliner. Kira and Dex moved slowly at first, scooting together on the bed then kissing. Dex's hand slid down Kira's body and he stroked her thigh a minute before her hips turned and my daughter's legs widened. She took his hand and moved it between her legs, shivering when my son made contact with her genitals.

I idly swept my hand through my crotch, so wet that my juices were making a dark wet spot on the fabric below. Dex twirled his fingers slowly across Kira's mound, and her hand found his penis and stroked him gently.

“Taste her, Dex,” I suggested, “lick your sister's sweet pussy.”

Kira moaned when his lips moved down her body, sucking on her tits a moment before he moved between her thighs and kissed her clit. She moaned louder when he lapped her dark-red labia then probed inside with his tongue. Kira came easily within moments, shuddering on the bed as Dex licked her cream.

“Now suck him, Kira,” I whispered, “suck your brother's cock.”

She rose as he lay back, taking his length in her fist a moment before sliding her lips over top, bobbing slowly on his head then slipping her mouth down further. My son groaned and closed his eyes, his hands running through my daughter's silky auburn hair.

I saw Dex start to tense and knew he wouldn't last long in his sister's mouth. “I think it is time, if you are ready,”

Kira looked at me, eyes wide, a clear delight and an edge of nerves in her expression. Dex just nodded, his penis throbbing in Kira's hand.

“How should we do it?” Kira asked, “like, on my back?”

“Tell me what you've dreamed of, Kira.”

She thought a moment, “on my back...”

“Dex? What about you? How have you always dreamed about it happening?”

“Yeah... I like that one,” my son replied.

“Then I think you both know what to do... Here,” I said, grabbing a velvety-towel and offering it to Kira, “put that under you... in case you bleed.”

She took the towel and put it near the center of the bed, then crawled onto her back, her body stiff a moment.

“Relax, Kira. It might hurt at first. Your hymen is wide, but it gets better... I promise...”

She nodded and looked at her brother as he shifted to kneel between her knees.

“Kiss her first, Dex,” I told him, kneeling on the floor next to the bed, my face just a foot or two from where they were about to make love, “rest over her on your hands and knees. Let your penis rest on her while you do...”

He leaned over and brought his lips to Kira's, using his hand to slide his cock onto his sister's Mons. Kira's body was trembling lightly, rising and falling with her arousal and excitement. Dex's cock throbbed and twitched as it lay between them.

They kissed for several minutes, the wonderful sounds of their moans and wet lips had me playing with myself slowly. It was soft and sweet. I could see that Dexter was being careful and gentle, showing his sister affection with each touch, that Kira's moans and fingers sliding over her brother's back and sides and chest signalled her attraction and love for her brother. It was such a lovely, endearing moment to watch. I wished my first time with a boy had been so lovely.

“Whenever you're ready...” I said, and I realized I'd just given my son permission to take his sister's virginity. I turned me on so much I came on my fingers, trying not to move or make much noise, letting them enjoy their moment together.

Dexter took hold of his cock and looked at Kira, “ready?” he asked quietly between soft kisses.

She nodded tightly, “y-yes... yes... I'm ready...”

He placed the head of his penis against Kira's thin labia and tried to push in. She bunched up her legs as he hit her barrier. “Ouch,” she said with a small measure of pain showing on her face.

“Should I stop?” Dex asked her after a kiss.

“No...”

He tried again, and Kira squeaked. “Uhnnnee—ahh.”

“Just go easy,” I whispered.

Dex pulled back slightly and pushed in again, stopped once more by Kira's automatic jump from the pain.

“Sorry, Kira,” Dex said quietly as he breathed heavily an inch from his sister's face, “sure you don't want me to stop?”

“Sure... just do it...”

He pulled back again, moved his hips slightly, then drove forward.

“Ahhhhhh! Oh... Oh... Oh... wait... wait...” Kira clutched her brother's shoulders, clamping her knees to his thighs. “Wow... oh...”

Dex held perfectly still, kissing her neck and cheek. They held like that a long time, my son's cock about halfway inside my daughter's vagina. From Kira's reaction, he'd just busted through her barrier. Small gasps and groans came from Kira's mouth, but her hips started to move a bit, small jerky motions as she tried to get used to the sensation.

It took a couple of minutes before Dex moved again, but when he did, he was gentle, using short, shallow strokes, not trying to push deeper into his sister's body. Kira relaxed a bit, still an edge of discomfort to her cries, but more and more I could hear the pleasure in her moans.

My children made love together fully for the first time right in front of my eyes. I couldn't believe what I was seeing. I came over and over as they rutted slowly. Kira wrapped her arms around Dex's shoulders and kissed him as he started to slide deeper into her body. She whimpered at times, but her motions became more urgent as he moved more quickly inside her pussy.

“Oh... uh... uh... I'm cumming... I'm cumming...” Dex groaned beside Kira's ear. His body spasmed lightly and then became still. I could see his penis throbbing with each spurt of cum he shot into his sister's young vagina. She moaned as her brother filled her with his seed, holding him tight against her.

Dex pulled back slowly, his penis pulled from Kira's pussy with a wet plop and a rush of creamy sperm. Small trickles of blood were mixed in, and more was coating Dex's balls and Kira's vulva. I stared a moment as Dex pulled beside his sister and kissed her. Kira's legs were wide open.

My daughter looked raw, vulnerable, and so fucking beautiful. My son had cum inside her pussy, and I could think of no more arousing sight in my life.

“Mom,” Kira said in a whisper, “will you eat it, like I did you?”

It took a moment to understand what she meant. When I got it, I didn't respond, instead moving quickly between her legs. I inhaled the scent of wet pussy and warm cum, a hint of blood and sweat. I loved the aroma of my children's mating, and in seconds I was lapping up the drops of Dex's cum and the virginal blood leaking from her vagina.

I was very gentle though I wanted to lick her quickly. I knew she was sore and I tenderly cleaned her flesh, not minding the metallic edge the tearing of her hymen had added to my son's cum and her own pussy juice. I could have licked Kira's cunt forever.

It was only when I felt hands moving over my ass that I realized Dexter was behind me. Before I could react, he pushed his cock into my pussy. He was still wet from his sister's vagina, and knowing that he was mixing her blood and juices inside me made me get off hard moments later while I frigged my clit and licked Kira's raw genitals.

Dexter filled me after long moments stroking in and out of me. I collapsed on the bed, my legs over the edge. Kira rose and knelt down as her brother pulled out of my vagina, and I felt my daughter's tender lips sucking her brother's cum from my hole.

It was a haze which unwrapped from my thoughts when I was brought aware that I was on the bed and holding Kira, her brother on her other side, kissing her lips. I vaguely noticed that the covers were over our bodies, but the warmth of Kira against me drew me into her tight. “That was... beautiful...”

Kira turned to me, lips wet from her brother's kiss, “yes... beautiful... thanks for sharing that, Mom...”

“You two are wonderful together...”

“Thanks to you, Mom,” Dex said softly, “I loved it...”