Think I've found a Real Life Rachel..
Her name is Nikki Du Plessis, and she's a South African model from Playboy. To me, she looks a lot like Rachel, albeit with a prettier face and better proportions. So much so, she even got listed in FHM's "Top 100 Sexiest Women in the World 2013".
One photoshoot I've seen of hers, "Rustic Temptation", has her looking a lot like Rachel.