"Messing about with actual lemons sounds like work," Blaise said.  "I'll pass.  But I do, as you so charmingly inquire, have a girlfriend.  And she'll be back in town tonight and I was going to invite the pair of you to  join us at that Il Corvo restaurant that just opened in Diagon Alley, but if Granger over here is sick, I'll pass on having her cough all over my wine."