I adore The Outlaws of Sherwood and I really realy really love Sunshine. Sunshine has the wee beginnings of a sex scene, but nothing happens and it's done. :) (Deerskin is also good, but that's venturing into her weird verbose phase, so you may not dig it. I liked it though.)

BUT WAIT JUST A SECOND!!! Speaking of Robin McKinley, have you read The Hero and the Crown or The Blue Sword? Add those to my big old fat list above. They are YA, but OH SO GOOD. Her very best books in my opinion. (Dang, this is making me want to reread everything I own.)