A/N: Prompt from spoondance, who supplied the first sentence. Thanks!
"No. This is my toothbrush! Would you just leave me to my morning routine, Sam!?"
Blinking blearily at the girl after she snatched her toothbrush away, Sam yawned and leaned against the wall. "Srry," he mumbled. Tired fingers slid up his face and tangled in his bangs as he practically fell back asleep where he stood.
Watching him as she started brushing her teeth, Rachel's look of consternation slowly smoothed into an affectionate smile she fully sported after spitting and rinsing her mouth. "Sam..." she brushed her fingers along his arm, "Maybe you should go back to bed. I still have to shower and change before you have to see me off."
A giant yawn split Sam's face, but he put up his hand. "No, no," he started, straightening, "This is your... Our... Big day. I'm just." He forced his eyes open wide, making a strange face to induce wakefulness, "I don't know why I'm so tired."
"It's because you're not as used to getting up this early after a late night." Smiling, Rachel leaned up to gently kiss Sam's face, then reached out to turn him back towards the door of the bathroom. "Go back to bed, hun. I promise to wake you with enough time to look presentable." Her smile turned impish, "Which isn't hard to do."
A green eye looked at her. "Was that a... A compliment?" Sam yawned again, then, looking sheepish, grumbled and nodded, sloppily kissing Rachel's forehead before shuffling back to her bedroom, "Sorry, babe. Sleeeeeeep." A second later, it was followed by a hopeful, "'R join me?"
Laughing, Rachel closed the bathroom door behind him.