Steve pressed his lips together to resist the urge to grin, because that would definitely be seen as sass, and he certainly didn't want to displease her. She might stop, and that was the last thing he wanted.

Steve opened his mouth to answer - and promptly shut it again, honestly having no idea what to say. He could have sex, he could certainly think about sex; but when it actually came to saying things about sex, especially in the blunt manner she was wanting, he was very, very bad. He'd had a hard time with it even when he'd discussed it in whispered tones with Bucky, way back. He ran his hands up and down her back in a nervous petting gesture, taking a couple breaths as he tried to figure out what he wanted, licking his lower lip as he thought.

And then, of course, he knew. His fingers contracted, squeezing against her a little as he swallowed at the idea. "I want... I want to pleasure you with my mouth. I want to eat you. Ma'am," he said, his voice sounding calm, even as he could feel his face heating with a blush.