Spike: "Ohhhh, no! I've had enough of going into giant things today! Twilight's bag was enough!"

P.P.: "Aww, come on, Spike, it'll be easy!"

Spike: "No. I won't do it."

P.P.: "Please?"

Spike: "No."

P.P.: "Pretty please?"

Spike: "No, Pinkie!"

P.P.: "Pleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleaseplease....PLLLEEEEAAAASSSEE?"

Spike: "...Ugh..........Fine."

P.P.: "Yay!"

Spike: "What do I do?"

P.P.: "Just hop on in, find the tube, push it in, and whamo! Just...make sure to avoid the pirhannas, okay?"

Spike: "...What?"

P.P.: "Find it yet?"

Spike: "No, but I'll keep looking...uh, Pinkie? Would you mind me asking...how your mane is so big?"

P.P.: "Silly! It's all puffed up like a balloon, right? I assumed that, since air is big, my mane could expand to an infinite size! And, bang! It did!"

Spike: "Huh...weird."

P.P.: "No! It's brilliant! Oh, and by the way, watch out for the Eastern side of the pneumatics area..."

Spike: "Why?"

P.P.: "The bridge's supports snapped there..."

Spike: "BRIDGE?"

P.P.: "Yeah..."

F.S.: "Uh, Pinkie Pie? Are you okay?"

P.P.: "Yeah, hold on...Spike, take a right at the pool."

F.S.: "...Uh, Pinkie?"

P.P.: "Fluttershy, can we talk later?"

F.S.: "What are you doing? And who are you talking to?"

P.P.: "Spike, just, hold on for a sec..."

Spike: "Hold on!? There's a carnivorous plant chasing me!!"

P.P.: "Just throw a fish at him!"

F.S.: "...Did I just hear...Spike's voice?"

P.P.: "Yes. Now, go away for a bit. I need to do something."

F.S.: "Uh...okay then...good luck, I guess..."

P.P.: "Spike, watch out! The bridge is collapsing there!"

Spike: "Pinkie, I really don't care about that now!!! There's a giant plant chasing me!!"

Plant guy: "GRAAAAAAAAAHHHHHH! I WANT TO EAT YOU!"

Spike: "I KNOW! JUST, SHUT UP FOR A SECOND!"

Plant guy: "BUT I WANT TO EAT YOU!"

Spike: "Pinkie, get me out of here!"

P.P.: "Wait! I've got it!"

Plant guy: "Awww...why you no let me eat you?"

P.P.: "You, young plant, are grounded!"

Plant guy: "But why?"

Spike: "Grounded? What? Pinkie, this is a plant that doesn't speak proper Equestrian! Not a child!"

P.P.: "You're grounded!"

Spike: "Hey, I can see the pump!"

P.P.: "Now, get back in the greenhouse, and Spike, push the tube back in, please."

Spike: "Okay...I've got-WHOAH! Pinkie, what's happening?"

P.P.: "I told you that my mane is full of air. I'm holding my breath so that you're pushed out!"

Spike: "Ah...ah....Oh, Celestia..."

Trust me, there's SOOO much more to this chapter than this...this is one of the better parts of it (so far).
At current time, I have it up to 9k words. I haven't been able to edit it, as I'm grounded (FFFFFFFFFFFFFFfUUUUUUUUUUUUUUUUU-)
Anyway, enjoy! BTW SEND IN OC'S! But do it in the group called, 'Chronicle of Choices Stuff'