What follows is the binnings of a short story written as part of a challenge 
between myself and a friend. I hope to link to theirs soon. 
The prompt was onion stem and supernova.

Such small droplets. Molecular chains suspended in a sea of nitrogen, oxygen, carbon dioxide and a host of other gases. Allyl methyl sulfide. A simple compound that easily becomes an aerosol and causes such irritation to humans. Strange that a human like Steven would enjoy this plant as much as he does.

Steven was chopping onions for dinner this night. Sweet Vidalia onions, in fact, for a special dish of marinated shrimp he was preparing to celebrate his husband Danial's first day at his new job. It was a surprise dinner. Danial's favorite dish that Steven had cooked the fist time he invited Danial home with him.

Steven stopped chopping. It wasn't that he was crying too much, though the onion was getting to him, but that he noticed this one was just starting to sprout. The center of the onion had become a young stem. Danial carefully removed the baby plant and set it aside. He would plant it later, but time was short if he would have this dish ready

By quarter past eight Steven had set the table, plated the dishes, and was halfway through his first glass of wine when Danial walked through the door.

"I'm so sorry, honey. Orientation, meetings, and a welcome party. Seemed like it would go on forever."

"Its fine, my love" Steven said as he leapt up to take Danial's coat while wrapping his arms around them and landing a kiss on their cheek. "Now come sit down before the shrimp gets cold."

"Shrimp? Did you make that shrimp dish again?" Danial asked with a growing smile on their face.

"Sit down, drink your wine, enjoy and tell me about your day."

Danial made their way to the table, and sat down at the chair at the end of the long wooden table with a long, satisfied sigh as he poured themself a glass of white wine. He took a shrimp in his hand, its tail still on. He preferred the tails removed, but knew Steven had a hard enough time handling then enough to cook the shrimp, let alone de-tail them.

"So... Tell me! How was your first day on the telescope!" Steven asked excitedly while sitting back in the chair adjacent to Daniel, wine glass in hand. He swirled the glass and took a sip while running his foot up Danial's shin. He had to admit to himself that he was a little tipsy.