She watched her husband, transfixed

Leslie was woken from bed by her husband when he suddenly shook the bed. She opened her eyes and looked at him as he lay beside her, eyes closed. His skin began turning a pale shade of green and it kept getting greener. Leslie became worried and reached a hand to the bedstand to grab her cell phone. It had only been about a half a minute since Alex had shaken her awake and he was the green of grass when she reached back for her phone fumbling, not wanting to take her eyes off of her husband.

Suddenly he rolled on top of her and pinned down her wrists to the bed with inhuman strength and said, "Please, I love you." His eyes opened and were now milky green with dark green pupils.

They both had a habit of sleeping naked and Leslie was surprised and frightened as she felt her husband's cock push into her. He began thrusting into her, not the easy lovemaking that she was used to after all these years. But something more primal like the days and weeks after their first time together when they found every opportunity to have mad passionate sex. Leslie wasn't even close to orgasm when Alex came inside her. A flood of hot green cum exploded in her. It came out of him like it was coming from a faucet and in moments filled her womb to overflowing and leaked out onto the bed. It soaked into her skin and remade her. The moment the first drop hit her skin she closed her eyes tightly.

As her world turned green and she heard a voice say, "Do not trouble yourself we have assumed control."

About half a minute after Alex came inside her his wife said, "I agree," and her milky green eyes opened. They made love now and created a new generation of spores. This one would make the next generation different. Perhaps smarter or stronger, able to see in the dark or hear the faintest whisper. Perhaps even able to leap tall buildings in a single bound or climb them like a spider would. Whatever changes were made were meant to make it easier for the aliens to spread to more of whatever intelligent life they found on the planet.

Alex and Leslie got out of bed and each left the house in opposite directions looking to spread their gift to their neighbors. They were now ambassadors of the galaxy's dominant species.

((That was it as I originally wrote it. Just a simple story of the eldritch horror that no doubt awaits us in space. Maybe I will add more someday. In the meantime feel free to add to it as you please.))