[@FalloutJack] So... Just wanted to let you know that the Greek name Nero would be spelled "ネロ" in katakana and that Kayakos is not a Japanese surname. Kayako (かやこ) is a feminine given name, though, so I think that might be what you were trying for..?

Any way, the name "Nero" could easily be said as "Neru (寝る)" when spoken; "Neru" means to sleep, lie down, ect., but is more commonly used among youngsters as a slang word for having sex. Just thought I'd let you know.