Author's Note: All characters are 18 years and older.
---
For the rest of the week, Ed was unable to get the primary object of his lust, the cheerleader Charisma, alone. He made do with any other senior students or teachers that he could find, though, filling them up with his alien sperm, unmindful of the danger. Then Spring Break started.
"Okay, when Erin's family gets here, we're going to have you..." Ed's mother Eve pointed at her husband Bob, "in Ed's room with Dave. I'll be sleeping with my sister in our room, since I haven't done that in forever, and then the kids will take the living room, like normal."
Ed scratched his head. Normally Aunt Erin and Uncle Dave would take his room. This changeup was odd.
"I don't wanna sleep on the floor, Eve," Dave told her.
She gave him the look that told him that she was done arguing. "Just blow up the air mattress, Bob; it's only one night."
"Hmph."
---
When his aunt's family arrived, Ed was surprised to see that his strawberry blonde cousin Julie had grown even taller in the last year, about 5'10" now, though the 18-year-old's willowy figure had filled out as well, becoming more substantial in the hips and bust. He waited for Perry to say something about the gorgeous young woman, but he had been strangely silent for most of the day. Ed hoped that the alien parasite was finally realizing that his family was off limits.
---
Next door, Eve's neighbor Darla had invited another neighbor, Mrs. Chen, over for tea. Darla's new 5" blue cock, overstimulated by the other woman's orgasming pussy, ejaculated alien seed deep inside her.
---
Across town, the curvy librarian Mrs. Parker was sawing her new 5" blue cock into the juicy pussy of Mrs. Abed, the co-owner of the local convenience store. Bags of chips rained down from the shelves from their frenzied coupling.
---
After a sumptuous dinner, the extended family sat down to play some board games. Ed and Julie's team stomped the parents at Pictionary, but then the brother-in-laws Bob and Dave destroyed everyone with their ability to remember useless facts in Trivial Pursuit. Finally, it was time for bed.
The taller Julie took the couch, of course. Ed had mixed feelings when he found that he had grown just enough that he could no longer fully stretch out on the love seat. After some uncomfortable adjustments, he finally fell asleep.
---
Erin, Ed's Aunt, woke up to find what she thought was her husband sidling up to her, his hard cock poking into her thigh. "Oh, Dave..." she moaned, and raised her leg to allow his penis to slip between her thighs. Her bedmate slipped lower, and she could feel that hard cock start to press between her vaginal folds.
Then she remembered that she wasn't at home, and had gone to bed with her sister. "Wait, wha--?"
Then Eve thrust, burying her now 6" blue penis deep inside her sister's pussy.
Erin gasped, feeling pleasure blossoming from within her. She moved a hand to her partner's chest and found her sister's substantial breasts. "Wha--? Evie? How?"
