Seth and Summer got back to the Cohens at 10:30pm. They saw all the lights on in the house, so they went in. What they saw shocked them.

All five kids were still up. They were bouncing off of the walls with sugar and they didn't look like they would be going to sleep anytime soon.

"What did you give them?" Seth asked.

"Well, it was Sandy!" Ryan said.

Summer and Seth looked at Sandy.

"They were looking for something to drink. So, I went to the bathroom. When I came out, they were drinking Kirsten's energy drink."

Seth gave his father the death glare.

"Hey kids! Go upstairs and bother the kids!" Summer said.

All five kids ran up the stairs.

"We have some good news," Seth said.

Summer held her hand out. "We're getting married!" she said.

Everyone went over to her and looked at the ring.

"Congratulations," Ryan said.

"Thanks ma-"Kirsten ran over and grabbed Seth. "You're finally getting married!" she said.

"I owe Luke some money," Ryan said.

"Luke Ward?" Seth asked.

"Yeah. We made a bet in high school that you two would never get married," Ryan said.

"Keep it up Chino," Summer said.

Skylar, Jamie and Cody came downstairs.

"Thanks dad," Jamie said.

"Hey kids! I have some good news! Summer and I are getting married," Seth said.

"To each other?" Cody asked.

"Yea! Is that a problem?" Summer asked.

Skylar looked at Cody. "Remind me that I owe you $10," he said.

"You made bets also?" Seth asked.

"Yea. After dad told us about your history, we thought you weren't gonna make it. Also, he told me about the bet he made with Luke," Cody said.

"Well, this has been fun. I'm going to bed," Seth said.

"Me too," Summer agreed.

"Wait!" the three oldest kids screamed.

"You aren't sleeping in the same room together," Jamie said.

"Why not?" Seth asked. "We're adults."

"Summer's and adult. Plus, I don't want the twins coming in at twelve at night saying it's too loud to sleep," Jamie said.

Seth blushed.

"Dad can stay in his old room and Summer can sleep down here," Jamie said.

"Where can I sleep?" Summer asked.

"The basement," Cody said.

Summer stared at her ring. She's engaged. How did she, Summer Roberts, ever fall in love? Right on cue, a familiar song came on MTV

So she said what's the problem baby
What's the problem I don't know
Well maybe I'm in love (love)
Think about it every time
I think about it
Can't stop thinking 'bout it

How much longer will it take to cure this
Just to cure it cause I can't ignore it if it's love
Makes me wanna turn around and face me but I don't know nothing 'bout love

Come on, come on
Turn a little faster
Come on, come on
The world will follow after
Come on, come on
Cause everybody's after love

So I said I'm a snowball running
Running down into the spring that's coming all this love
Melting under blue skies
Belting out sunlight
Shimmering love

Well baby I surrender
To the strawberry ice cream
Never ever end of all this love
Well I didn't mean to do it
But there's no escaping your love

These lines of lightning
Mean we're never alone,
Never alone, no, no

Come on, Come on
Move a little closer
Come on, Come on
I want to hear you whisper
Come on, Come on
Settle down inside my love

Come on, come on
Jump a little higher
Come on, come on
If you feel a little lighter
Come on, come on
We were once
Upon a time in love

We're accidentally in love
Accidentally in love I'm In Love, I'm in Love,
I'm in Love, I'm in Love,
I'm in Love, I'm in Love,
Accidentally

Come on, come on
Spin a little tighter
Come on, come on
And the world's a little brighter
Come on, come on
Just get yourself inside her

Love ...I'm in love

Weird, Summer thought. She turned off the TV, put the ring back into the box, and fell asleep.

Seth heard the song also and he couldn't get to sleep. How did he fall in love? When did he fall in love? So many questions in his mind. But he does know one thing. He loves Summer and she loves him.

When Seth woke up, he forgot where he was. For one second, he thought he was a crazy teenager who was out of his mind for liking Summer Roberts and thinking he had a shot.

But, he remembered last night's events and smiled. He smiled the biggest smile ever.

Summer was also smiling when she woke up. She looked at the table next to her and saw her engagement ring. She put it on her finger. I'm Summer Roberts Cohen. Has a little jingle to it. Summer still couldn't believe that she was engaged and in love. She smiled and went upstairs.

She saw all five kids asleep on the floor and a very tired looking Sandy, Kirsten and Ryan sitting at the table.

"Hey guys," she said.

They looked at her.

"Woah! Who died?" Summer asked.

"We almost did," Ryan said.

"What time did they go to sleep?"

"One thirty!" Sandy said, looking at Kirsten.

"You weren't watching them. I'm 62 years old! I need energy!" Kirsten said.

Seth came out and hugged Summer.

"Hey," she said.

"Hi future Mrs. Cohen," he said. They started to kiss.

"HEY!" They turned around. Skylar, Cody and Jamie were there.

"No kissing!" Cody said.

Summer and Seth looked at Ryan and Marissa.

"It's true," Ryan said.

Summer and Seth went to the basement to talk.

"Do you have the entire thing planned out?" Seth asked.

"I'm not Monica Gellar. We are gonna plan it out together," Summer said.

Luckily for Sandy, Kirsten, Ryan and Marissa, all five kids woke up with a semi-hangover from all the energy drink they had.

"Let's go to sleep," Sandy said.

The four of them went to bed and sent the five kids downstairs.