Butler Boris has to endure every little game that his Mistress thinks up before he is allowed to ejaculate. In this occasion she has instructed him to take her favorite position which is for him to be on his knees naked and stroking his hard cock. She stands opposite him just watching him as he masturbates for her. She walks over and offers him her legs to fuck. She leaves him from time to time and watches him masturbate some more. After a few more fucking and retracting laps she finally allows him to ejaculate in an explosive manner all over the floor.

Similar situation here: