Author's note: This story involves themes of forced sex & impregnation of a mythical being with transmasculine anatomy. All characters are over 18.
In some lands, the fertility nymphs are bold—male and female alike—choosing their mates & riding them hard, thereby placing their own sons on the thrones of men (the better to meddle in our affairs). But in my land, they're aloof, recalcitrant, difficult. They think themselves above mortals and rarely, perhaps never, mate with a human man of their own volition. For this our crops have suffered and our armies lack the demi-god heroes that lead our rivals against us. I myself live hardly better than a poor farmer, though my blood is noble and I am by rights king of this humble land. Most in my position would marry strategically, wooing the least sought-after daughter of the most powerful house I could find. But my tastes do not run to women (though I have tried) and my ambitions are too big for a loveless political marriage. I vowed to capture one of the boy-nymphs in his fertile time and plant my seed in his belly. My heir will be the son of a god and my kingdom will prosper. Someday my people will thank me for not settling for a convenient princess.
In truth, I was not even certain where I'd find such a creature. Here they were little more than a tantalizing legend. The myths were frustratingly spare of details, or so obviously embellished as to be quite literally unbelievable. Still, when I set my advisors to collecting the scraps they could, a few clues recurred often enough that I began to trust them. Fertile boy-nymphs always emerged in the mysterious light of dawn and dusk. They gather to bathe where rivers meet the sea. You cannot tell them from ordinary youths until they remove their garments, revealing their divine anatomy—strong jaws, narrow hips and lithe figures married with a cleft between their legs like a girl's. My member stiffens just imagining what it would be like to bed one.
We have no mighty rivers, besides I did not think I could capture one out of a crowd—if his fellows came to his defense, as they were said to, I'd be ripped limb from limb. My only hope was to find the guardian of a humble creek and take him alone. I selected a modest stream that flowed only a few leagues from its spring in the coastal mountains to the north, meeting the sea before ever melding with another tributary. And it was within my lands, only a few days journey. I packed a horse-cart, bringing food and shelter, as well as quite a bit of rope. I could have walked, or ridden, but I was not sure how to bring my bridegroom home without his escaping unless I could bind him & carry him safely in the cart.
The journey was uneventful & left me hours and hours to imagine how I might plan my assault, which I considered from every possible angle with the zeal of a tactician and the libido of a sailor with but one night till port. In keeping with my plan I denied myself release—the myths suggested the nymph would come to accept, even crave, my touch once my seed was planted inside him, but I could not divine whether that meant he must be with child, or if the transformation would occur as soon as I orgasmed within him. Some even said it might happen the moment I penetrated his divine orifice. Even so, it seemed wise to do all I could to ensure I'd impregnate him in our first mating. The paradox was agonizing: the more I reminded myself I needed to unleash a torrent of my most potent semen into the boy's womb right away, the harder it was to keep my hand out from beneath my robes.
On the third day, I stopped an hour's walk short of my destination and made camp one last time, so that the next day I arrived at the mouth of the stream in late morning and had all day to plan. I built a snare and a blind—as though I were hunting an enormous hare—that I hoped would suffice. Within the snare I placed my dowry gift, a basket of perfect cherries from my orchards.
But the heat of the day lulled me to a stupefied slumber and I awoke too late—it was nearly dark, and the cherries were gone with the trap still set. I panicked—I had not thought to hold any back for a second attempt—and rushed out onto the beach like a man gone mad.