For many hours after and straight into the night, Hal continued to pound both the Duchess and her maid in various positions while never allowing either of them to use their hands.
The two got used to the deprivation soon though and it was no longer really a punishment as much as an added kink that enhanced the excitement that they gained from the session.
That said, it definitely served a purpose to Hal which was to mark his dominance over them and further signify that they were his...
He was not theirs...
This was not an equal relationship...
This was a one-sided one where he had all the power and once he branded them when his Devil mark, he sealed this by binding them to his Devil seed and further increasing his growing and creeping influence.
Eventually, even though they had swallowed a large amount of his cum and had received a massively significant boost in energy, they reached their limits and fell unconscious.