William's eyes narrow slightly, cheeks flushing as Mercer laughs. "She's at least fifteen," he surmises, sizing Dalik up despite the scowl he earns. "What on Earth do you mean, 'underage'? The brothels begin hiring them as young as thirteen. Some go down to eleven, God help them." He makes a face, indicating his opinions about that particular practice. "And if they're wealthy enough they're married off around the same age. For all I know, she's been promised, bedded, and bred."
Dalik breaks off from her conversation with Ossanlin, giving William a sharp glare. "I have not been any of those things, and if you continue talking about my host like that I'll watch you die slowly." Her lip twitches into a scowl.
William purses his lips, then tips an imaginary hat. "Yes ma'am," he says formally, with only a hint of mockery in his tone. "Forgive me."
Rolling his eyes a little, he turns back to Mercer. "Well, then," he says flatly, brushing at his damp britches. "Seeing as the lady is off limits, perhaps you'd be willing to indulge me instead?" His eyes trail down Mercer's body, considering him. "You seem as though you could use some loosening up."
Dalik turns back to Ossanlin, turning her chair so her back is effectively to William and she is facing the Andalite entirely.
"So you are a traitor, but you're being protected from being billed as such," Dalik summarizes. "The people engineering the war's image found you to be their tool and decided to keep you around." She nods. "It makes sense. "You use one another, and so long as you each serve a purpose life is able to go on."
She lifts her lemonade to her lips, taking a small sip as she gathers her thoughts. "Funny, I always knew the Andalites were manipulative, but I never thought to consider how they manipulated one another. Foolish of me, I suppose." Setting her glass on the table, she gives a brisk smile. "Well, if I'm being completely honest, I'm relatively shocked to have endured your presence without being decapitated. If you truly are supportive of helping my people find peace and freedom from our pools, then I would certainly be interested in getting to know you better." She hesitates, then sticks out her right hand in a very human offer for a handshake.
"It's good to make your acquaintance, Andalite," she says, trying not to look too anxious about offering a limb to a creature with multiple blades on hand. "Officially, and presumably as allies."