Just then the horse turns and nuzzles Kayden's neck, as if to kiss her. She says in baby talk to the horse:
"Why yes! See! He does like it!"
Then, continuing her tease, she addresses you and says:
"He's just like any man, once he knows who's boss, he loves doing my will!"
Your cock gets very hard when she says this. You lean back against your horse to steady yourself.
Strangely enough, he remark sounds just like one of your fantasies, but you haven't told Kayden about your fantasies yet, so how would she know?