Why was Charlotte acting bashful before?

You are suddenly struck by something else: a contrast between Charlotte as she's acting now, and how she was five minutes ago.

"Gone is the bashfulness that I saw, when you came up to me in the hall, by your door," you remark to her.

Charlotte looked slightly worried, as though you might be setting up to reprimand her. "Oh. Am I being too forward?"

"No, no," you say. Charlotte smiles, and gently squeezes your member some more. "But when you first said hi to me today, you seemed positively shy. What was going on?"

Charlotte blushed. "You have the right to ask," she said, withdrawing her hand from your jeans. "I suddenly realised that I was getting horny just being near you, and I found it difficult to meet your gaze." She looked at you meaningfully.

You looked back at her, holding her gaze. You moved in slowly, bringing a hand down to her skirt, between her legs. Charlotte makes no motion to stop you as you bring your fingers to her panty-covered pussy lips. You feel then squish gently.

"I think," you say to her, "that you should take your panties off."

Charlotte smiles and shakes her head. "Not just yet. Though I think I will take off my skirt soon," she smiles warmly at you, waggling her bottom. "When I do, would you prefer me to wear something on top that shows an appropriate amount of under-boob, or shall I just wear a bra?"

Being asked this by Charlotte is a powerful turn-on. "Underboob, please. I enjoy the way your breasts move."

Charlotte beams at you. "Yes, John."

You hear a gasp behind you.