A/N: I have pretty much taken a hiatus from this site, but a CSI marathon has brought feelings for this ship back, and a drabble request on tumblr had me writing some humor-filled fluff, and I wanted it here.
"Told you it was the mother," Catherine teased lightly as Gil poured himself another cup of coffee, and he shook his head, exhaling through his nose in amusement as they walked through the halls, back to his office.
"You were right," he conceded, holding the door for her before following behind her.
"We bet, and you lost," she reminds him, and he groans, low under his breath.
"But tattoos are permanent," his voice holds the barest trace of a whine, and Catherine laughs, settling in the chair across from him.
"As amusing as it would be to watch you get 'Catherine is always right' tattooed across your chest," she says, drawing a pained look from Gil that makes her roll her eyes affectionately. She reaches into her back pocket, pulling out a small square. "I will concede to a non-permanent tattoo."
Gil laughs, leaning forward to take it from her hands- it's a small peace sign, and she shrugs. "Stole it from Lindsay."
She gets up, digging around- she wets a paper towel with a bottle of water over the garbage can before she advances on him. "Alright- where're we marking you?"
Gil sighs before he lifts up his shirtsleeve, exposing his bicep- Catherine takes the tattoo and places it on his skin before she holds the damp paper towel over it. After a few minutes, she pulled the paper towel and the paper backing off, revealing the small circle on Gil's skin- she threw the waste out before she leaned forward, blowing gently on the wet skin. A shiver went through him, and she smirked to herself, gently touching his skin.
"Perfect," she murmurs, looking up to find Gil looking at her, dark eyes hooded.
"Yeah," he replies, voice low. "Perfect."
