Smiling cat's purpose

So slowly, time went by and the night was getting older. Against the darkened sky, the stars were shinning bright and the moon was shaped like the smile of a smiling cat.
The night was so dark, even with the slight moonlight, that the camp site looked like a haunted cemetery, there were a few lamps with dim lighting, so Ellie couldn't even distinguish the other caravans outside.
She was laying down on the upper bed of the bunk, gazing through a tiny window of her katamarano light caravan, with her left arm out of the bed, swinging sideways gently and her right arm resting on her tummy.
Raising her right fist, checking the time on her watch she murmured "Three and a half... that makes nineteen hours awake in a row." and running her face "I'm going to be like a zombie in the morning!"
Heath, sleeping in the bed beneath her, grabbed her left hand and started pulling her down, "i had a nightmare, come down here." he begged with a sleepy face, having some difficulty to keep his eyes open.
"Really?" Ellie provoked him with a smirk. as a reply, he just pouted and Ellie finally said "Fine!"
Throwing away her sleeping bag, she climbed down carefully and got into his sleeping bag.
"I'll be here, 'till you fall asleep again." she noted, while Heath snuggled down her chest and embraced her waist with his left arm, pulling her closer to him.
She began to pat his blond hair, sliding her fingers through his strings of hair "You starting to need a haircut." she teased, holding him tightly and wrapping her legs around his hips, getting on top of him, whispering on his ear "Fluffy boy..."
Heath grinned, squeezing her bum gently and leaning his head forwards to nom her neck. Ellie moaned in pleasure, tilting her head back, slightly, and pressing her hips down at his, sliding her fingers along his boxers's line.
And then their lips met, with so much passion.
This time, Heath got on top of her, still holding the kiss, "Tasty!" and they both nuzzled.
Heath hands moved up, lifting her top and throwing it to a corner of the bed, smelling the scent of her skin alongside with the magic touch it provided. He left her lips behind, and went down her body, kissing passionately and licking every piece of her skin.
Ellie met his lips again and instead of kissing, she bit them. He gasped and licked them back. With their hormones over floating, kisses turned into snogging, simple touches turned into caring embraces and the Earth turned back into Heaven for one night.
The moments before drifting away, Heath rubbed Ellie's cheek with his thumb and reminded himself "Tomorrow I have something to ask you.", however Ellie had already fell asleep.

*

Heath felt Ellie getting out of bed and packing some products in a bag to go for a bath, out at the camping bathrooms. He was so tired, that decided to enjoy a few more minutes in his comfy bed.
A half of an hour later, Ellie was already dressed and breakfast was ready. He finally got up, washed himself and put some clothes on.
She was quiet, as if she was expecting him to say something. Nothing came up to his mind, except for "Ellie, ..." he began to say timidly "... Will you..." he noticed that her eyes started to shine "... just pass me the butter, please." and he averted his gaze down and raised his hand to pick the butter she lend him.