I'm gonna try the beginning in third-person. Tell me if you like it like this, or in Cammie's P.O.V. (which the rest of it is gonna be)
:-) Thanks!

The sun streams in through the partly-open shades, casting a golden light over Zach's room. Cammie shifts in her sleep, moving unconsciously closer to him. In turn, he hugs her to him, slowly waking. As his eyes open, Cammie moves again, her hand resting on his chest.
At first, he thinks he's sleeping next to an angel.
Did I die in my sleep?
He takes a closer look, his eyes fully adjusting, and realizes it's Cammie.
No wonder I thought she was an angel.
He smiles, recalling the night before. He'd do it over and over again.
Zach traces her back with his hand, simply watching her.
She's so beautiful.
A low groan escapes Cammie's lips as her eyes flutter open. She looks up, into Zach's eyes, all of last night's activities flooding into her head. She smiles at him and he smiles back, moving impossibly closer to her. She can feel the heat coming from him, all the warmth and security that she needs. She snuggles into his chest, wrapping an arm around him. She kisses his collarbone, lightly tickling his side.
"What are you trying to do?" Zach mumbles into her hair.
"Nothing." she says, listening intently to his heart-beat.
"You ok?"
"Absolutely great!" She looks up at him, cups his cheek and kisses him. "I seriously think this is more of real relationship than just a sexual attraction. Whataya say?" She smiles playfully, reminding him of what he said not that long ago.
It couldn't have been just a couple of days that they knew each other, could it?
"Definitely more." They stare into each other's eyes, an emotion they knew well enough peeking behind each streak.
Zach's hand cups Cammie's cheek, trails down her neck, traces her side and stops at her butt, holding her to him. She giggles and he looks up at her, an eyebrow raised.
She laughs this time.
"Just make love to me." she whispers in his ear. A shiver runs down his spine and he kisses her hard on the lips.
"You wanna go at it again? Already?" he moves against her and kisses her neck.
"Mmhmm. Before your parents come back. It's early enough for another round, don't cha think?" he growls, deep in his chest.
"You're so damn sexy."
"I love hearing you say that."
"And I'll keep saying it." he rolls over her, pinning her to the bed. "You wanna know what I love to hear from you?"
"What's that?" she traces her hand down his chest, smirking at him.
"I love hearing you scream my name. It sets me on fire." she pulls his head to her and kisses him.
"Make love to me, now, and I'll scream it over and over again." he claims her mouth with his and shifts over her, slowly moving in.

Cammie's P.O.V

Zach and I lay tangled in his bed, simply caressing each other and basking in each others' presence. It feels so right, so amazing... so absolutely perfect.
Nothing beats laying with him, in his arms.
Though I won't actually tell him that. He'll go all cocky and ego-crazy on me.
Don't like that.
With one exception, of course: that super sexy smirk of his that I love.
It makes my insides melt.
I'll never get enough of him.
"Whataya thinkin' about?" Zach asks me, pulling me out of my thoughts.
"You. Us." I reply, looking up at him, rubbing my thumb over his cheek for about the millionth time this morning.
"They're all good thoughts, right?"
"Most of 'em." I wink at him.
"I'm not sure what you're implying."
"Want me to tell you exactly?"
"Yes, please!" I laugh at him.
"Mainly what I do like and don't like about you." he frowns.
"There are things you don't like about me?"
"Just a couple."
"Like what?"
"When you go all ego crazy on me." He's silent for a few moments.
"I can't help it when a beautiful girl tells me something good about me, especially when it's you." He hugs me close and kisses me.
"Of course." I snuggle into his side, taking in his warmth and just feeling him. After a few minutes of comfortable silence, I roll on top of him, rubbing my nose against his. I lower my head to his neck and kiss it, and I feel his hands holding my butt. "Wanna go to the pool later, or just hang around and be the lazy asses we are?"
"You don't have a lazy ass." Zach mumbles into the side of my neck. "You've got a sexy, tight and round one." I blush furiously and hide my face in his neck.
"Stop it!" All he does is chuckle.
"But it's true."
"Ugh, Zach!"
"Mm... that's what I wanna hear."
"Dude!" I smack his chest playfully and roll off of him and off the bed. "I'm putting my pajamas on and going to eat some cereal." Zach groans.
"I'm cold. Come back over here." he holds his hands out for me but I just shake my head. "Actually, I've got an idea. Since we forgot the music last night, how 'bout you dance to a song now? Just the way you are, like that?" His eyes rake up and down my body and I just look down because of his intense stare.
"Zach..."
"Look at me." I do. I plead with my eyes for him to just let me get dressed.
"Please." He holds my gaze and stands up. He walks towards me, arms outstretched. I take a few steps and let his arms wrap around me in a hug.
"Can I... you know... dress you?" Zach asks nervously.
"I guess you can. If you want." I reply.
"Yeah." It comes out of his mouth in a whisper. I pull away from the hug and retrieve my bag. I hand it to him. He takes out my pajamas, a bra and matching underwear. He smirks at me, his eyes dark. I smile shyly up at him, crossing my arms over my stomach. I let them drop to my sides after a moment's hesitance, balling my fingers and then letting them go.
"When are you planning on starting, exactly?" I ask Zach. He stalks towards me, my clothes in his hands. He drops them to the floor and kisses me lightly, his hands taking in as much of me as possible.
"Right now." My panties are in his hand and he bends down. "Leg up." I lift my right leg, then my left, and feel the fabric moving as he pulls upwards. He kisses my stomach and reaches for my bra. He stands up and slides the straps up my outstretched arms."Turn around." I do as I'm told, and I feel his hands grab the clasps and clasp it. He hugs me from behind and I lean into him. "Those are the two things I really didn't want to put on you." I laugh.
"Sorry, buddy."
"I guess it's not your fault. I'm gonna out your pants on now, 'k?"
"Sure." He pulls away from the hug and gets my pajama pants. As soon as he sets them the right way, I put in my leg according to side. He brings them up my legs, and then purposely pulls them back. He looks up at me, smirking, and lets go. I feel a light hit- doesn't hurt in the least -but I still glare at him. "You aren't nice."
"Never said I was." He picks up my shirt and scrunches it together. "Hands up." I put my hands in the air and he slides the shirt down my arms. He pulls it down and I let my hands fall. "Well, that was easy."
"OK?" he laughs.
"You're so cute." he kisses my neck and then pulls me up against him. I kiss him hard on the lips, holding his head to mine. I feel something poking me...
"Zach!"
"What?" he asks so innocently.
"You can't get this hot every time we kiss or touch, or even when I dance. You never know where we could be- and I ain't doing anything for you like that in public."
"But nobody's here."
"But I'm tired." I hug him again, leaning on him.
"We just slept for I don't even know how long!"
"Someone's desperate." I whisper.
"Just to feel your lips on m-" I cut him off with a kiss.
"Let me dress you now, m'kay?" Zach is just staring at me, eyes wide open. "I'll take that as a yes." A grab a pair of his boxers and walk towards him. I sit on my knees, ignoring his slight erection that's right in front of my face. "Legs up." He does as he's told, following my instructions 'til the end. Well, up until I tried to put his shirt on.
"I'm not putting a shirt on. I'm too hot. Plus, I'll have you ogling me the whole time." he winks, a deep red taking over my face.
"I guess I just won't give you that satisfaction." I turn and walk away from him.
"Cammie!" he whines.

Well, definitely didn't leave you guys on a cliff-hangar. Hope ya'll liked it!
And just 'cause I'm a music nut- I recommend all of you to listen to Kiss Me In The Dark by Randy Rogers Band (country), and Without You by My Darkest Days (rock). :-) haha Enjoy!