Not via air. We are taking DB to Nürnberg, hence the hope to meet somewhere reasonable (that and lounge access; I'm *G, and have always found LH happy to let arriving pax use the Senator lounge to grab a shower)
Yes, but your guest normaly needs to have an *A BP, as this lounge is always overloaded, you need to be really lucky to bring your AA flying guest in... But who knows.