Keep him hard, but don’t let him cum.
Yes Daddy.
Ride your dildo, but don’t you get off without permission either, understood?
Yes Daddy.
I’ll be back in an hour, and both of you had better be busy, frustrated, and dripping. If you’re a good girl then we’ll lock your pet up in his chastity device and put the strap on attachment on him, would you like that?
Yes Daddy.
Good, now tease him, train your pet like i’ve trained you, and you can earn your orgasm for later today.
The notion of him not being allowed to fuck her with his own cock does stuff to me.