Sister Mares

Karly shuddered, trying to rock back at her sister, though she could not, pinned in such a position, aching with the penetration, her cock hard, so very hard. She burned for another climax, yet it could not cum until the very peak of her sister's, heaving and catching her breath.

Yet a moment of respite was not to be as Mira squealed above her, a hoof kicking out, slamming in all the way up to the fold of her sheath as she unloaded her balls inside Karly. The white mare moaned, biting her arm gently to try to contain her passion, yet it was not to be held back, not then, not ever. Dimly, she was aware of the throb of her own climax, spending her seed, once more, into the bed, the fat length of her sister's dick crammed right up to her prostate.

Panting, heaving, she licked her lips, nickering, groaning, strands of her mane clinging to her neck where her white coat gleamed faintly in perspiration. The scent of sex permeated the room, an aroma that Karly hoped she would never get out, shivering deliciously against her sister as the older mare hung her head, kissing her shoulders softly. It was there that she stayed until every drop of her seed was ploughed into her sister's backside, right where it belonged.

For a moment, that was where Mira stayed, her arms around her sister, lying on top of her, though one ear pricked to make sure she was not restricting Karly's breathing. Even in the aftermath of lust, that was hardly something she wanted to do. Lips fluttered, kissing and nibbling, teasing a post-orgasmic line down Karly's neck as the mare groaned lightly.

"Mmmm..."

Her cock softened, slipping gently from Karly's anal ring, the pucker strained and pulsing lightly, though the mare was comfortable. She whimpered, nestling into her sister's arms as Mira cuddled up beside her, her arms around her, cradling her gently.

They didn't have to say anything, but Karly tucked her head down, sighing, her nose pushed in against her sister's breasts. As if absent-mindedly, she kissed and nuzzled, pushing her soft nose into the flesh of Mira's breasts, the mare nickering her appreciation as tiny, electric thrills shot through her nipples.

"That's so nice..." Mira groaned, stroking her sister's back tenderly, fingers running down her spine. "I think you might just be going to miss you. But that was wonderful. So wonderful."

Karly nodded, her grip on Mira tightening.

"I am really going to miss you. But..." She tilted her head up, tail flicking cheekily as she caught Mira's eye. "I'm so glad you own my dick now, Mira... Because you'll be using it every time you come home!"

Mira laughed, startled into mirth, though it was more of a shock than anything else, their relationship changed forever. Karly's kiss, lips brushing and then deepening the embrace, soothed her, however, relaxing into the moment, lips parting, tongues sweeping lustfully up against each other.

Sister mares, after all, would always be there for each other. Even in the most unconventional of ways...