My New Boot Lick Slave | His Cum on My Overknee

I have a new slave. I am currently educating him according to my wishes. His first lesson is today. Licking boots! Following my instructions, he was allowed to slide his tongue along my heels and boots. This task alone seems to have overwhelmed him. Again and again he wanted to play with his cock prematurely. But he was only allowed to do that after I gave him permission. Since he was a bit too horny, I thought that he would only come with hot air when he jerked off. However, he still managed to squirt a fat portion of cum on my boots. Of course he had to clean the boots properly again! I can`t go out like that, with cum on my overknees.