A/N: Prompt from lightbluenymphadora; attempting to bake cupcakes. Thanks!
Somehow, Sam is more covered in flour than is in the mixing bowl, Rachel quickly becoming just as messy as him as he shakes his head over her, showering her in a cloud of white.
"Stop, stop," she squeals, hands pressing against his chest and waist, trying to duck and twist away as his arms wrap around her, laughing, "We need to - for your siblings' - Sam!"
Laughing himself, Sam leans down to rub his head against hers, grinning widely, "Resistance is futile!" He pins her back against the counter, one hand inching for the can of vegan frosting they'd set aside earlier.
Rachel curls her fingers into the bottom of his shirt. "What are you doing?" she asks breathily, warningly, struggling to contain a smile. As she waits for an answer, she studies Sam's face, then sighs and lets her smile show, moving one hand up to wipe along his eyebrow and down to his cheek. "You look ridiculous."
Dropping his chin, Sam laughs into her mouth, "So do you." He pulls back, scooping out some of the frosting, and in a second, it's slashed across her nose and cheek. He laughs broadly. "It's even better than I expected!"
Rachel stares up at him, mouth dropped open. "Sam!" she shrieks, slamming her hand down on the back of his neck to pull him into a fierce kiss, smearing the blue frosting onto him as well, "You are so, so getting it."
"Awesome." Sam kisses her back, arms wrapping around her waist again, "But you want to start by licking this off of each other?"
Rachel groans, pulling back. "Shirt off. Now."
Smirking boyishly, Sam does so, "Again. Awesome."