Lydia wakes up before Stiles and she looks into his face, hands still holding on to each other, and she thinks to her self:

How dose it feel so right to wake up next to this boy?

The feeling she feels is butterflies in her stomach and she feels the desire to give him a kiss, but she holds back. She take's his face in, really looking into it. She's never really looked at him like that before. She sees all the molds spattered around his face, his v shaped lips, his dark brown hair, that he'd let grow over the summer, pointing at all directions, his cute pointy nose. She looks down at their hands tied together and starts looking at his lanky long fingers around her small hand. She sees a very handsome boy turning into a man and she can't understand why she never looked at him like this earlier.
Why Lydia? Why haven't you seen this great handsome guy before?

She sees Stiles eyes start to wake up and she stair into those deep brown eyes as he awakes.
Stiles think's he's dreaming so he closes his eyes again and squeeze her hand tight, he opens his eyes again and he's looking right into the most beautiful green eyes he's ever seen. They lie there for a moment just looking into each other's eyes and Lydia can feel her heart starts pounding more then usual and she's never done this before, just laid in bed looking into a pair of eyes that seams to be smiling and not saying a word. She feels warmth inside her that she's never felt before. After a while Stiles finally opens his mouth and whispers:
"Hi beautiful!"

Lydia looks away and bites her lower lip because how can he think she's beautiful when she's just woken up and looks like a mess. No one has ever said that to her ever. But she can feel and hear that he means it. She looks back at him and whispers back:
"Hi…"
Her cheeks starting to flush. He places a hand on her cheek and says:
"Can I kiss you?"

Was he really asking her that? No boy has ever asked her such a question before so gentle and lovingly. She answers with placing a kiss on his mouth and he's hand goes from her cheek into her hair and neck. Lydia pulls away softly and smiles saying:
"No one has ever asked me that before."

Stiles looks into her eyes and he can't understand that no one ever treated her the way she should be treated, like the most beautiful, strong, courageous, delicate girl she is. He puts a string of hair behind her ear and places his hand on her back dragging her into a hug and Lydia places her head against his shoulder placing her hand on his chest. Lydia breaks the silence:

"So, do you still want to date me?"
Stiles kisses her forehead saying:
"Why would I change my mind? I wanted to date you for years."

Lydia shuts her eyes never wanting him to leave her. She turns to face him, placing one hand on his collarbone and her head on top looking into his eyes and grabbing his hand in hers. She opens her mouth and says:
"So, how is this going to work out? What will we say to our parents?"

Stiles lie quiet for a while to come up with a plan while looking into those green big eyes. Lydia sees in his face that his planning something so she won't interrupt him. She just continues to look into his eyes, studying his face. After a few minutes Stiles opens his mouth:
"Okay, I think we should get our parents together under the same roof so we don't need to take it twice. We should explain exactly everything, but you can leave out the sex having details. "
Lydia rolls her eyes and gives him a smile, he continues:
"and then we say that I will be there all the way and I will adopt the baby so it doesn't grow up without a father."
Lydia gives him a kiss on the cheek just because his willing to sacrifice his life to raise a baby that's not his biological child. He's willing to step up all for her. She was such a bitch to him in the beginning. She knew he fancied her even before he said it out loud, she could see it in how he was looking at her, but she had Jackson back then who turned out to be a jerk and she thought that she needed a cool guy. Turns out she might not need to be dating the captain of the lacrosse team or the hottest guy in school, she starts to realize that maybe what she needs is someone who will do anything for her, respect her, even asks if he can kiss her, someone who just wants to lie in bed looking into her eyes, someone like Stiles.
Stiles cups his hand against her cheek and asks:
"Does that mean you're in to my plan or not?"
Lydia smiles rolling of his body and pulling herself up from the bed. She holds out her hand for Stiles to grab. He grabs it and stands up next to her and she puts her arms around his waist and says:
"Yes."

She stands up on her toes and places a long kiss on his lips and Stiles puts his arms around her back reciprocating the kiss.