Luckily, Lydia deems Scott's plan as 'passable' when he explains how he wants to do it, and although she tries to act like she's not impressed, he can tell that that she sort of is.

They round up Isaac, who's sitting in the room next door watching reruns of Gossip Girl, and recruit him to help with the plan's execution despite his feeble protests ("But Scoooott, this is just getting to the good part, Chuck is about to—" "ISAAC LITERALLY NO ONE CARES; YOU'RE COMING WITH US" followed by a gentler approach, "Come on, I'll take you out for Mexican later if you help").

It takes a little while, and although Scott's mostly got it covered he's glad he's got the two of them with him, as Lydia stands back and observes, giving him helpful tips and advice and making sure he doesn't screw anything up, and Isaac helps him with the more hands-on stuff.

By the time they're finished, the sun has set and night has already fallen.

Luckily, the place they're at— though outdoors— is lit-up, and they all stand back to admire their work.

"It kills me to admit this, Scott, but…I'm impressed. You did a really good job with this. I think he's going to love it."

Coming from Lydia Martin, this is incredibly high praise, and Scott can't help but feel his chest swell with pride.

"Hey, I helped too!" Isaac chimes in before Scott can properly thank her, and Lydia just rolls her eyes at him.

"Yeah, you helped, but this was Scott's idea."

Scott, who's standing in between the two of them and is too excited to put up with any sort of argument, throws an arm around both of their shoulders and grins ear-to-ear.

"It was a group effort. Seriously, thank you guys so much for your help—I couldn't have done it without either of you. Lydia—did you text him?"

Lydia smiles fondly at his eagerness and excitement and Isaac just looks happy that his contribution has been acknowledged.

"Yeah, I did. He should be on his way now. He thinks he's meeting me here on pack business. But I promise we'll be gone before he shows up—you just have to let us know how it goes. I'm expecting a very in-depth play-by-play of his reaction. "

She grabs Isaac's hand and gives a little wave over her shoulder as she pulls him away, and as they're getting in her car they shout one last "Good luck!" in unison before driving away, leaving him there to wait, teeming with excitement and unable to sit down and relax.

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

He hears Stiles' jeep before he sees it, the familiar squeak of the tires and chugging of its engine as it gets closer and closer until finally Scott can see the splotch of blue approaching on the horizon.

His heart speeds up in anticipation, and after what feels like an eternity Stiles finally pulls up in the parking lot where Scott is waiting for him.

He climbs out of the jeep and looks around in confusion.

"Where is Lydia? And the rest of the pack? She said there was something important we needed to talk about."

Scott's palms are sweaty and he has to force himself to focus very hard on staying calm and composed as he grabs Stiles hand and starts pulling him along behind him.

"Well, this isn't exactly pack business, but it is important. To me, at least. And to you, too, I hope."

Stiles eyes him suspiciously before looking around him and fully taking in his surroundings. Comprehension dawns in his eyes and a smile tugs at his lips as looks back at Scott and tilts his head in curiosity.

"Scott, why are we here?"

Scott flashes a grin at him.

"So, you recognize it, then?"

Stiles raises an eyebrow as if to say 'are you serious?' and nods.

"'Course I do. This is the playground where we met. Like, a billion years ago. How could I forget about—"

The words fall flat and get stuck in his throat as they come to a stop in the middle of the park, and his mouth hangs open in shock.

"Scott—Holy shit—how…?"

His voice is full of amazement, and he's staring at the sandbox—or more specifically, what's inside the sandbox— eyes wide in awe.

It's a sand castle—but it actually looks like a castle. It's tall and it's wide and it's incredibly detailed—clearly it took almost all the sand in the sandbox to make it, and it takes up nearly the entire space.

Most importantly, however, is the single word carved into its side:

'Prom?'

Scott grins at the baffled look on Stiles' face, basking in the knowledge that he's accomplished something that not many people can say they've done—he's left Stiles Stilinski speechless.

And it's really not often that Stiles— always-thinking, always-talking, hyperactive Stiles—who never really shuts up, can't find anything to say.

"It's just like when we first met here, remember? I was building a sand castle, all by myself, when you showed up. Only this time it's a lot…bigger. And I didn't completely make it myself—I had help from Isaac and Lydia. Well, Isaac helped me build it. Lydia kind of over-saw everything."

When Stiles continues to gape at him, looking from the sand castle, to him, and back again, Scott adds, "Oh, and I'd appreciate if you didn't pee on this one, you know, like you did when we were three."

"Scott—I can't believe you—oh, my God…I was just joking earlier! You didn't have to go through all this trouble and do this!"

"I know," he says with a smile, "but I wanted to. And it was definitely worth it, just to see your reaction."

"I can't believe you," Stiles mutters, shaking his head slowly back and forth. But he can't stop smiling as he circles around the sandbox, snapping pictures of Scott's creation on his phone to remember it by and stopping to run his fingers over the spot where 'prom' is written into the side.

"So, is that a yes, then?" Scott asks with a grin, giddy at how well his plan has seemed to have panned out and already thinking of how he's going to describe Stiles' reaction to Lydia and Isaac later.

"Dude, I already said yes earlier when you asked me!"

"Not technically, you didn't."

Stiles rolls his eyes and attacks Scott with a hug, nearly knocking him over in all his enthusiasm.

"Of course it's a yes, you idiot. It would have been a yes if you had asked me over text at 3:00 in the morning the day before. But wow, I mean…wow. Thank you. This is seriously amazing."

"Good," Scott laughs, hugging Stiles back, his spirits soaring in happiness. "And what can I say; apparently I have a reputation to uphold."