It is so good of your Bull to encourage you to do exercises every evening to help with your thigh muscles. Look how he makes you video it and send it live on the internet so he can check you are performing properly. Even your wife laughs whenever you mention it. No wonder you are so grateful to him.
It's much easier for the sissy cuck if the Bull takes a moment to explain the situation the sissy cuck finds themselves in. Be careful of the giggling though, you are not supposed to let on that you are enjoying his power.