Ask Buff if she ever experimented.

"So Buffy have you ever experimented? Sexually?"

She tought about it for a second. Before she opened her mouth he noticed her nipples become more pronounced.

"Oh, well yes."

He stopped smiling. He had expected her to talk until she had told him every assorted detail of her sexual identity. He graoned realizing that she would only answer to direct questioning. He sat their and thougt for a few minutes, telling her to go upstairs and change into a shirt, preferably a sports jersey and panties, cotton not lace.

As she came bouncing down the stairs he had what he was going to ask her all planed out.

"What is the wildest thing you ever did according to societies rules of sexuality?" He smiled, 'I phrased that rather poetically' he thought.