The Possible Blobfather

You wake up your computer and click around on your social media page, looking through photos you've been tagged in by your family. The ones your dad is in have him eating, just having eaten, or he's playing around showing off his size with your uncles or something. Maybe he really does like being big? You could ask him, of course, but you did change your brother all on your own. What's the harm in changing more to suit what you're considering?

Deciding that if it goes wrong, you can just wish for an undo (maybe, you're not really sure about that), you head out of your room and down the hall. Your dad is in the living room watching TV and casually scrolling on his phone, hand rested on his belly to hold said phone like its a cushion. He's in his casual after work clothes, wearing a t-shirt and some loose shorts while he sits there, not really noticing your presence.

"Hm," you say as you go to the kitchen first and get a small cup of water that you add the powder to. You swirl it a bit and take a sip, thinking to yourself, "I wish my dad would tell me his honest feelings for the next 20 minutes."

Then you carry the cup to the living room and smile to your dad, this time trying to get his attention. "Hey dad! You busy?"

He shakes his head and sets his phone down on top of his gut, "Nope! What's up, bud?"

You sit in an armchair and try to act casual. It probably isn't really working since your heart is pounding and you're not sure why you're even actually doing this. Though you close your eyes and take a breath before looking at your dad. "Uh, well, if you could... like... if it was possible in any way... would you want to be bigger?"

"Bigger?" he asks, clearly confused but a shift in his face shows you that he's actively considering it.

"Yeah, like, you seem to really like eating and are proud of your gut so I figured... what about getting bigger?" you say, shrugging casually and turning to look at the TV to act like it's no big deal.

"Well..." he starts. "Yeah! Guess I never really thought about it actively but... being big is cool. Your uncle is big. Grandpa's big. Why shouldn't I be big? I kinda wanna be bigger'n both of them!"

You blink and stay focused on the TV. This is your chance. Your heart pounds and you lick your lips as your mouth gets dry from the sudden intensity of the moment. Your eyes shift down to the cup in your hand and see the bright blue solution sparkle inside, reflecting the lights in the room back at you.

"I could help you," you say as you slowly turn to look at him.

"Really now? How's that?"

You hold up the cup, "I... I bought a wishing powder. I know it sounds crazy but it works. I promise! I could... Well I could grant your wish?"

He looks at you curiously and seems to actually consider it. But what does he say? Does he want a small test? Does he want to go big? Does he want to take it slow? And what about everyday life?