"Gastrophidia" is about a fellow named Hurley, who has a snake in his belly. Specifically, a viper. Sharing his body with a snake gives Hurley a crotaline perspective on things; for instance, he likes his tiny apartment because he thinks of it as a den——no sense having more space than you need.
The snake emerges at night, although perhaps Hurley is dreaming:
It slipped along Hurley’s pock-marked skin, brushing against him with the susurrus of scales on flesh. It was warm from its time inside him, and he felt it coil down one leg and up the other with a tingling shudder. Its feathery tongue danced along the sensitive skin along his side, down his thighs, on the bottoms of his feet, and Hurley clenched himself tight in an agony of glee, unwilling to twitch or flail and risk injuring the snake. It lay itself along the length of Hurley’s body, its tail-tip wrapped around one ankle, its blunt, blood-slick snout next to Hurley’s ear, and began to sing to him. The snake had a woman’s voice, deep and husky, and he could never quite recall the words to the song the next morning. Hurley knew, though, that the snake loved him and thanked him for his pains . . .Hurley's life becomes complicated when the snake takes exception to Hurley's overbearing boss.
"Gastrophidia" is a short, fun story, but thought-provoking at the same time. It's well worth checking out. I also note that this is the third SROTW to come from Ideomancer, which consistently finds very interesting work from relatively new authors.
Nathaniel Lee, who sometimes shortens his name to Nathan Lee and other times expands it to Nathaniel Matthews Lee, has published short stories in such venues as Daily SF, InterGalactic Medicine Show, and Abyss & Apex. He seems to prefer writing at short lengths, and posts flash pieces at nearly a daily rate on his Mirrorshards site.