The pretty guy with the rose whip is Kurama. Fangirls love to slash him and Hiei (the short guy), even though there's really no yaoi hints in the series. Kurama is the main reason YYH's fanbase in this country is mainly female.

I'm quite familiar with Kurama since my best friend used to write Sailor Moon/YYH crossover fanfics where Yaten and Kurama were lovers.