I don't own the characters; just use them.
On the plane
"OK… you plug this in for that… ugh, it still won't work" she mumbled.
"What's wrong?"
She looked up. "No matter what I do at wont work out."
He leaned over. Her hair smelled good, like apples. "Mmmm" he murmured.
She looked up. "What?"
"Uh, I was just saying your hair smells good."
She blushed and laughed. He leaned in again. "It smells like apples. Really good apples. He stared at her and wondered if her mouth might taste as good as her hair smelled. Slowly, he moved closer. "Charlie?" she whispered, her mouth inches from his.
"Yes?"
"Are we… really…" she gasped as their lips connected. Putting his hand behind her neck, he pulled her closer as she pushed him against the window.
"Hey, Terry." Don said. "Think I'll go see how Charlie's doing. You want a drink?"
"Sure, I'll have a diet."
He walked down the isle towards the back where Charlie and Amita were sitting. As he came up to their row, he was surprised to find them both asleep. Charlie was leaning against the window, and Amita was literally laying on him, her head resting on his chest. But, even more shocking, his shirt was open, while hers was lying on the floor with his belt. Obviously, they had been busy the last two hours.
"Charlie, wake up" Don said, shaking Charlie's shoulder. Charlie lifted his head up and groaned. "What ever happened to just being teacher and student?"
Charlie looked down and blushed. "Uh…yeah" he stammered. "We were just, uh…"
"Yeah, I know." Don said and walked away.