Nina looked a bit helpless and shrugged. "Thoroughly, thoroughly unexpected. I-- Geralt is sterile. And I-- I've never had to worry about unexpected pregnancies."

She knew that sounded cryptic, and if Greta asked she might tell her the specifics, but for now that seemed like enough.

"Anyway, when-- well all the strange wish things happened, Geralt... accidentally wished himself human. Entirely human. And I suppose that meant all the sterility went away for two weeks."