Castiel was glad that Meg did not spurn the direction his current affection was going in. For him, this slow and steady way, it was for the best. It allowed him to lead at the pace he was comfortable with and he didn't have to feel like it was rushed. It was a moment they could savor. He hoped that she felt similarly, but he couldn't claim to know what Meg thought or felt about the situation. He knew she cared about him, yes, but he didn't know anything beyond that. If the situation truly bothered her, he was certain she'd tell him just that. For all she cared about him, she didn't mince words with him. She told him what she thought and that was something he truly liked.
He was confused by the movement of her gripping at his chin, something that played over his features, his expression moving from that softer one he'd held moments before, when he was gazing at her, to the furrowed brow that made it plain he wasn't sure why she was stopping him. Then, she spoke and he still couldn't quite act like he understood it, but he knew why she stopped now. The thing about being an angel, he could see her true face, but it never stopped him from his affection for her growing and turning into something else. And he'd seen plenty of demon's true faces.
"I didn't say it as flattery, Meg." He told her truthfully, that concern turning toward troubled, because he thought she was aware he meant it. "I have seen and can still see your true face. And yet, I find it beautiful. You, are beautiful." There was a hint of a sigh in his tone, because thanks to how he wasn't the type to use words he didn't mean, it left him floundering in this situation. He had no reason to lie to her, because saying something that he didn't mean was lying. And he loathed the idea of lying to Meg.