Will focused on breathing for a while, because he was starting to been nauseous at the thought of what he'd done (the guilt, not the sex, that had been fine.)
"I- I-" Just say it, you twat. "Mm- Melpomene came here last night looking for Alan, and- she- I-" He closed his eyes and exhaled through his nose. "We had sex."
There. It was out. One down, everyone else to go. Dear god, he was a prize arsehole.