Not my fav BDSM, sure, and the Pony Play made me really uncomfortable, but I loved seeing the love and trust develop between Lane, the good boy, and Derek, his Dom. When the book starts, Derek HATES Lane, with good reason, he thinks. And Lane does not trust anybody. Then their paths keep crossing and against his best judgement - or so he thinks - Derek starts to care about Lane. 
 The emotional development of the two characters is good right until the end where I'm a bit disappointed. I had hoped Derek would realise that Lane needed a psy and encourage him to see one. It was not exactly a "BDSM therapy" kind of book, but it felt a bit like one.