Andy fucks herself down onto his fingers hips working. Sam lets go of her wrists. He's expecting some smartass comment but her hands come up around his neck right away, clutching a little, her fingertips in the hair at his nape. She's still making noise, quieter now, but he wants to hear that whine again so he adds a third finger, slow and steady, then crooks them forward come here.

Bingo.

"Good?" Sam asks (he's still smiling, he can't help it, he'd do this to her their whole suspension if she'd let him). Andy nods into his neck. He nudges her back a little, gets his thumb at a nipple, ducks his head enough to get her into his mouth--he licks for a minute, tries biting, and the gasp she lets out against his skin--well.

Sam bites harder.

She's still working herself on his fingers, more purpose now, not kidding around. Sam grinds the heel of his hand into her clit, gives her pressure, and after another minute--there she goes.

"Good girl," he tells her, fingers still moving, Andy whimpering against his skin. "Good girl."