A/N: Hello, this is another Johnny Test fanfiction I'm writing. I hope you like it, and don't forget to review!

It was a Saturday at the Test house. No school and no stress. Johnny becomes very happy when it is like this.

Johnny looked over to Dukey. "Do you want to play video games?"

"Sure," Dukey said with enthusiasm.

Johnny walked over to the couch in the living room and sat in front of the TV. He reached for the video game controller that was beside him and tried to pick it up; however, he couldn't.

Johnny tried again with more effort, but picking up the controller was like trying to lift a 640-pound weight. "What the heck? Who turned up the gravity so high?"

This time, Johnny tried to pick it up with so much effort that he started sweating. But for some reason, he could not pick it up. Dukey looked at him with a perplexed expression.

"Nice acting, Johnny, but you are not that weak," Dukey said.

"No," Johnny said. "I'm not acting. I don't know why I can't pick something up that is so light."

Unlike what Johnny does often—lying—he was actually telling the truth. However, Dukey didn't buy it. "Yeah, alright. Now go to the Z-Box and turn it on; you forgot to do that," Dukey said.

"Oh, right," Johnny said.

Johnny got up and walked towards the Z-Box and tried to press the power button; however, he couldn't. For Johnny, it was as if the power button of the Z-Box was resisting strongly against him.

"Okay, I am not going to try harder because if I do, I'd break my finger," Johnny said.

Now Dukey started to think that Johnny's weakness is legitimate because Johnny never holds a joke for this long.

"Okay, I believe you," Dukey said. "And your lack of strength concerns me."

"Yeah, me too," Johnny said. "This never happened to me before."

"Maybe it's just something going on today that will resolve on the next day," Dukey said, trying to shed light onto the situation.

"We'll see," Johnny said.

Johnny and Dukey were woken up by the beeping sound of the alarm clock. Johnny reached over to turn it off, but he couldn't.

"You were wrong, dog," Johnny told Dukey.

Dukey stood up and turned the alarm clock off for Johnny. Then he said, "Things just always have to go wrong, even when there is no cause. Just wonderful."

Johnny lit up. "Maybe my sisters can fix this."

Johnny and Dukey walked out of the room and to the lab. Johnny tried to type the passcode in order to get into the lab; however, Johnny didn't put two and two together, as indicated by his failure to remember that he can't push buttons, pick up anything, and etc. because of his lack of strength.

"I'll do it," Dukey said, stepping towards the keypad on the wall. Then he stared at it blankly.

"Uhh…what's the password?" Dukey asked.

"G-I-L," Johnny said.

Dukey felt dumb. "Oh, right," he said, slightly embarrassed.

After Dukey typed in the passcode, they both ran in.

Susan and Mary looked back to see their brother and dog in the lab.

"How'd you get into—" Mary started to say.

"I lost all my physical strength and I need it back now, so gimme it," Johnny said, cutting her off.

"Yeah, sure, like we'd ever believe that," Susan said sarcastically.

"No, he's actually telling the truth," Dukey said.

Johnny walked over to an empty beaker that was on a table. He tried picking it up with all of his might, but he couldn't. "Did you see that? My arms aren't working," Johnny said.

Susan and Mary still didn't believe Johnny, so Susan pulled out a device called the Effort Detector 4000 and told Johnny to try to pick the beaker back up again.

Johnny did as he was told, and after a moment, the screen of the Effort Detector 4000 read '100%'.

"Wow," Mary said. "He's actually not lying this time."

"And since it can't hurt to have you regular strength back, we're giving you this," Susan said, holding out a beaker full of a purple liquid.

"Thanks," Johnny said after drinking it, relieved and grateful. With that liquid, Johnny will never have to go through days being weak.

As Johnny and Dukey walked out of the lab, Dukey said anxiously, "What if that strength juice wasn't tested? Because if it wasn't, then that could mean something like muscle loss could happen! Or getting Disappearing Butt Syndrome! Or—"

"Relax, dog," Johnny said, interrupting him. "First of all, there's no such thing as Disappearing Butt Syndrome. Second of all, why would they let me have something that's untested unless I demanded, manipulated, or got behind their backs to get it?"

"I don't know, but I have a bad feeling about this," Dukey responded.

"Anyways, let's get back to our video game that we started yesterday," Johnny said, changing the subject.

"Sounds good," Dukey said.

The two of them walked downstairs to the couch in the living room to play video games. Johnny successfully picked up his video game controller and turned the Z-Box on without a problem or difficulty.

"See, Dukey? Everything is fine and nothing bad is happening," Johnny said.

Yet, Dukey thought as he played video games with Johnny.