sfalphabull:

As a beta male is being de-sexualized, it can be useful to relieve the tension in his penis.

This massage is not explicitly sexual, it it not enough stimulation for him to ejaculate, but it will ease his stress from the hard work of de-conditioning. He will not be sexually satiated from this process, but he and his penis will be more relaxed, ready for more training.

Source: Femdom Planet