Luna (unbirth)

Nothing big. Just a blurb. Goes to this. http://rule34.paheal.net/post/view/1160616

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Luna smiled in contentment, looking down on the enormous bulge that was your form with a sense eof quiet maternal pride. Even with as obviously tired from the pregnancy as she'd been, it still wasn't easy convicing Celestia to let go of you for even a little while. The older alicorn seemed quite fond of the feeling of gently nurturing you inside her womb, gradually reshaping your body into a proper pony form capable of surviving in Equestria.

Which was exactly why Luna had been so keen on taking over for a little while - with her older sister so obviously enamored with the sensation of carrying you, Luna's curiosity had been nearly overwhelming. It had taken some doing, but eventually the sun goddess had caved. A few careful spells later and with pussies pressed firmly together, you'd been passed from one surrogate mother to another.

Celestia's softly ripping vagina had seemed almost as reluctant to expel you as Luna's was eager to accept you. Thoroughly inundated and weakened with transformative magic, your hazy mind was still just barely conscious enough to notice your departure from Celestia's embrace, and you groaned and twitched weakly in protest as you left the princess's body for the first time in nearly a month. Fortunately, your exposure to the harshness of the outside world was brief, Luna's welcoming hole right there to greet you as you exited. Luna's pussy stretched smoothly to accommodate your form, massaging your entire body with gentle contractions as you slid towards her waiting womb. Luna's cervix dilated to receive you, and you smiled gratefully as you entered. The opening quickly sealed shut behind you, locking you protectively inside the warm, safe confines of the moon goddess.

Celestia looked on, more than a little enviously, as Luna gasped, her belly round with your presence. A palpable aura of satisfaction engulfed the younger alicorn as she carefully, gingerly laid down on her side, stroking the bulge of your form gently with a hoof. Already Luna could feel her magic - the extension of her very soul - seeping into you, fostering your growth and strengthening your body. You kicked lightly, and Luna giggled at the ticklish sensation, reveling in the powerful bond already forming between the two of you. For the time being, you were Luna's, and completely dependent on her to take care of you.

She rather enjoyed that thought.

Celestia excused herself, huffing quietly in jealousy as soon as she was far away enough for her sister not to hear it. Somehow, she had the feeling Luna would not be eager to give you back once she'd rested up and taken care of the affairs of state on her agenda. If that was the case, Celestia might have to be... persuasive; the joy of your presence inside her was not one the princess would give up lightly. In any event, it seemed increasingly that upon your rebirth, you would find yourself the pride of not just one, but two doting mothers.