Unplanned Coincidence

Karin, Yuzu, Rukia and Rangiku all find out that they have something in common, when the boys discover their secret they suddenly regret doing it with them. Karin/Toshiro, Rukia/Ichigo, Yuzu/Jinta, Rangiku/Gin (Sorry about the first chapter being short, if I actually update this story I'll make sure that the chapters are longer)