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Slipping away from Ashley wasn't easy, I was too afraid of what the demon might have done to try and change her to hang around much. Getting back home though was thankfully easy without issue. Opening the door I walked in like normal, "I'm home!" I called out just as I shut the door, then I looked into the living room to see Sarah... WAIT WHAT?! I stared with wide eyes, Sarah had CHANGED too! I felt fear as I saw her stand up, a new height of 6 foot 10 looking GIGANTIC, even more at her newly slightly muscular form. Abs, Biceps, she looked a LOT stronger than she used to be, she said something about "welcome home" but I wasn't paying attention, she was wearing what looked like a pair of shorts lent to her by MOM! They weren't hiding much though, the bulge was MONSTROUS! She must have been on Ashley's level now, her balls were the size of melons! She said something else about Mom and Crystal being out for something, I said I had to go take care of homework and Sarah went back to her show as I went upstairs.

I closed the door and gulped, there she was, that wicked smile on her face as she sat there, wearing a VERY skimpy version of the outfit the nurse usually wore at school, so barely covered that her behemoth package was left out on full mouth watering display. "Y-you! W-why are you wearing that?! What did you do to Sarah?! What did you do to Ashley?!" As I tried to sound angry and threatening she just smiled more, giggling at me. Then I felt my mouth close against it's will as she stood up. "Oh sweetie, I didn't do anything except give them what they wanted. Poor Ashley was so worried about you ignoring her feelings and just abandoning her, I just helped give her a helpful nudge is all. The nurse stepped away and I took her place just before you came by the infirmary at school, and your sister? Oh cutie... your gonna have SO many more questions before I'm through~" As she finished speaking she vanished, right as I thought she was gone suddenly I felt her gargantuan package SMASH up against my ass! SHE WAS DEFINITELY BIGGER! I felt her HAMMER against me with more strength and power than expected, my mouth forcefully shut as her balls SMACKED against my shorts covered ass. I didn't even realize I was lifted into the air by her thrusts, or that she was holding my arms as her thrusts threatened to FUCK ME THROUGH MY CLOTHES! Not until I was dropped onto my bed, my ass tingling and twitching as I turned around to see she was GONE AGAIN!

"It's only Tuesday cutie, but by Friday? You'll be BEGGING to take Every. Single. Drop~" Those words reached my ears despite her having vanished again, I only just now realized my dick was almost PAINFULLY hard, throbbing against my shorts. As I struggled to calm down for the next few minutes I noticed my hands were shaking a bit, my legs quivering. Finally I recovered and went to do what I needed for the rest of the night, homework and what not. When dinner time came around though I was called down to the smell of pizza and a yell from Crystal. I went downstairs hoping I would be able to relax a little and enjoy some food at least. NOPE. I froze as I saw my family there, Crystal and Lisa both DRASTICALLY changed like Sarah had been. Crystal's new height reaching 7 foot 8, with Lisa's even more TOWERING height of 8 foot 5. Crystal's muscles even more defined and powerful looking, Lisa's being just a bit further along in terms of pure strength, holy FUCK. I couldn't believe it, they were all so HUGE, powerful an- WHAT THE FUCK?! My eyes felt like they were about to fall out of my head as I spied the bulges they had now, Crystal EASILY had a bulge that made it clear, her cock was definitely near 3 feet long and with a considerable girth too. Then I saw Lisa's... HOW. THE. FUCK? Her bulge looked like it was every bit as big as the DEMON'S! Her cock must have been something like 3 and a half feet long. The BALLS though looked enormous even on each of their new, massive, powerful bodies.

I went to grab some pizza, trying to pretend like they hadn't changed so much in only a day. I would eat my food and try to just answer what questions I could usually, but thankfully they were all asking each other about just how much they'd changed. When I finished eating and headed upstairs for bed, I was honestly just trying to keep from asking what deal they made with the demon. I can only imagine what they would do if they knew the magic book I had read from was something REAL. Wait, the BOOK! I went to look into it's pages only to freeze when I opened the hiding place it was in...

"No... No no no no NO!" It's GONE! HOW?! WHEN?! WHO?! As I moved things around I saw a note I hadn't before, reading it made that fear swell up in me further. "Looking for the book? Sorry sweetie, I couldn't just LEAVE a tome like that out lying around... Don't worry though, if I get the right person to read from it, then I can get some REAL power~" I don't remember what happened next, the note fell back into the drawer as it slid closed and suddenly, my vision was going dark, I just barely managed to turn towards the bed as I collapsed onto it ****.