So Stiles is feeling all loved up by his wolfman. Since he can't say the words or text them or stuff yet, he resorts to what every teenage boy does. The pulling of the figurative ponytails or in this case, changing Derek's ring tone.

I mean, sure, the two of them spend a lot of time texting each other during the day, but they usually don't call each other until night time, you know for sexy phone call time. Which if he's honest mostly consists of his telling Derek everything that happened that day (like he hadn't mentioned most of it in his texts) and Derek listening and Stiles moaning about not being able to hang out and have sexy time and trying to figure out when they will be able to see each other next and eventually Derek just comes over and climbs into bed with him and hangs up his phone and they have cuddles.

But yeah, back to the ponytail pulling. Every night Stiles changes Derek's ring tone for him so that it's a surprise the next day. He figures it's kind of the equivalent of sticking a note saying I love you or have a nice day in your kid's lunch or your hubby's briefcase.

So the first time he does it he sets his profile to "I'm too sexy for my shirt." Cause it was the first time Derek and taken Stiles' top off and left him covered with hickeys. And really? For the first time he didn't feel like the scrawny one. Derek had made him feel sexy. He was totally going to own those hickeys tomorrow, whilst simultaneously hiding them from the world under his shirt. He knew Derek thought it was hot, because the next night he didn't say anything about the ring tone, but he definitely paid some close attention to Stile's chest.

And the night before the full moon, knowing that "the pack" was going all wolves only into the woods the next day he changed it to Who Let the Dogs Out by Baha Men. It was totally funny! Even if Derek was not amused, but he didn't say to stop either.

There was that day where it had just seemed like everything had gone right. Derek had answer all of his texts, no matter how random the point. He'd actually talked on the phone instead of grunting and when he fell asleep Stiles swore he heard Derek say he missed him too, so what else was a guy to do? He had to express his feels, so T. Swift's Fairytale became Derek's next ring tone. How awesome are those lyrics "It must have been the way, Today was a fairytale, It must have been the way, Today was a fairytale, Today was a fairytale, You've got a smile that takes me to another planet, Every move you make, everything you say is right, Today is a fairytale.

And that night when Derek had been feeling a little frustrated, because Stiles had had to say no. When a guy has 2 tests and a lacrosse game the next day, there is so not going to be any sexy time. And to clarify, sexy time had not yet included actual sex, cause apparently his ass was waiting a few months until he was technically legal. So to let Derek know he was all down for it tomorrow night the ring tone of the day was Rude Boy by Rihanna. "Come here, rude boy, boy; can you get it up?Come here rude boy, boy; is you big enough? Take it, take it baby, baby Take it, take it; love me, love me, love me, love me,

Tonight I'm a let you be the captain Tonight I'm a let you do your thing, yeah Tonight I'm a let you be a rider Giddy-up, giddy-up, giddy-up babe Tonight I'm a let it be fire Tonight I'm a let you take me higher Tonight, baby, we could get it on, yeah, we could get it on, yeah". Apparently lyrics like this are catnip for werewolf boyfriends and totally get you blown. Another song that gets you hot werewolf lovin? Whatever you like by T.I.

Then there was that time where Stiles had challenged Derek's decision in front of everyone and seriously pissed Derek off, enough that he did that wolfy shoving him back into a wall thing. Only the wall hadn't been quite so solid and Stiles kinda ended up going ass over tea kettle through the wall. No injuries except to his pride, but he saw Derek's face. The flash of upset, ager and disgust which were all self directed. At the end of the meeting Stiles had had to drive Scott home, so he couldn't call Derek until he was back on the road on his way home. He kept it simple. He told Derek his ass had better be at his house asap or Stiles was going to chase him down. Derek had been really surprised Stiles had wanted anything to do with him. He'd expected to have his ass handed to him. So Stiles had told him it would take a lot before he broke up with him, the he was a Stalinski and they tended to stick and that he was human and might sometimes make mistakes himself and Derek needed to have more faith. So naturally the song he chose that night? Was Faith by TakingBackSunday.

I mean with lyrics like "You could lose your faith in music, Or lose your faith in friends, You could lose your faith in freedom, Feel trapped in your own skin, But I'll be right there beside you, (I'll be right there beside you), When the walls are cavin' in, (I swear oh I'm not going anywhere), But when I let you down, Look past your doubt, Just please (please), Don't lose your faith in me, Please (please), Don't lose your faith in me." how could you go wrong. And he left that one for a few days, cause it was something Derek needed to hear.

There was that one time where they had a stupid fight and Stiles still thought it was Derek's fault and even though they had made up, he still wasn't quite over it. So of course the song he picked was Maroon 5's One More Night. Because seriously sometimes that song just spoke about their whole relationship! You and I go hard, at each other like we going to war

You and I go rough, we keep throwing things and slammin' the door, You and I get so, damn dysfunctional we stopped keeping score, You and I get sick, yah I know that we can't do this no more, But baby there you again, there you again making me love you
Yeah I stopped using my head, using my head let it all go, Got you stuck on my body, on my body like a tattoo, And now I'm feeling stupid, feeling stupid crawling back to you
So I cross my heart, and I hope to die, that I'll only stay with you one more night
And I know I said it a million times, But I'll only stay with you one more night." He actually caught Derek humming that song while making the popcorn for the movie that night. Derek's voice? Gravelly and hot. Just saying.

And on the anniversary of Laura's death, he thinks that the only reason that Derek lets him hold him that night is because he programmed Gotye's Hearts A Mess in Derek's phone. It was like it had been written for Derek. You have lost, Too much lov, To fear, doubt and distrust, Its not enough, You just threw away the key, To your heart, You don't get burned

Cause nothing gets through, It makes it easier, Easier on you, But that much more difficult for me, To make you see, Love ain't fair, So there you are, My love, Your heart's a mess, You won't admit to it, It makes no sense, But I'm desperate to connect, And you, you can't live like this.

So of course the pack has been noticing that Derek has very Stilesized ring tones. I mean, this is Derek! No way that guy would ever pick Taylor Swift to be his ring tone never mind Rihanna. The guy was old. He'd like listen to something like old stuff. At least that was the consensus. But they never saw Stiles anywhere NEAR Derek's phone. And Derek never really seemed pissed about it. Not really. He kinda even snorted when the Who Let the Dogs Out played. And there was the day his ring tone was Firework by Katy Perry and Arms by Christina Perri.

So they all agreed, they were going to watch Stiles to see how it was that he was doing this. Cause whatever he was doing, it was making the Alpha well less grumpy instead of more grumpy. Lydia just laughed at all of them and called them idiots, but she wouldn't explain why. She did give Stiles and Derek very knowing looks at the next pack meeting.

So that day when Stiles was humming Natasha Bedingfield's Pocket of Sunshine in the morning and then it turned out to be Derek's new ring tone raised suspicions. Because if Stiles was singing it in the morning and it was programmed before Stiles arrived at the meeting, and Stiles was in school all day, then when did he have time to change it? After that Jackson, Boyd, Danny and Erica all began smirking at the other's continued confusion.

So, how did the others reluctantly finally realize that Derek was into Stiles? Well, it was the day that Katy Perry's Teenage Dream started playing on Stiles' phone:

Before you met me

I was alright but things

Were kinda heavy

You brought me to life

Now every February

You'll be my Valentine, Valentine

Let's go all the way tonight

No regrets, just love

We can dance, until we die

You and I, will be young forever

You make me feel

Like I'm livin' a

Teenage dream

The way you turn me on

I can't sleep

Let's run away and

Don't ever look back,

Don't ever look back

My heart stops

When you look at me

Just one touch

Now baby I believe

This shocked look appeared on Stiles's face before it turned beet red and a soft smile appeared and his heart blipped in his chest skipping a beat. He walked away from the others pulling his phone out to answer it. He waited until he was around the corner before answering "Hey Derek", but the proverbial cat was out of the bag. Derek has changed Stiles ring tone and Stiles was taking it as an acknowledgement that yes they were together. That night at the pack meeting was the first time Derek kissed Stiles goodnight while the others were around. Sure, it was in the shadows and away from prying eyes (supposedly), but it was awesome!