This unusual fantasy was quite spontaneous and pleasurable. Here are the details….
Background
I slept in my SafeTGard “chastity cup” with the Cage Cup overnight. I am in Day 5 of SR and awoke about 4 AM with a hard cock and “edging” close to the PONR as I have done before while wearing this particular cup (it is smaller than the other cups and my erect cock gets some additional stimulation with gentle movement—a nice feeling! I feel like I am going to ejaculate but don’t). I am due for a prostate stim session and decided rather quickly on the Helix Trident; why this model I didn’t know at the time but now it became very clear that this massager would be ideal for this session.
I lubed-up and began. Almost immediately, I began to get what I would call “rapid-fire” auto-contractions. I could not stop them nor control them. (Thanks to the HT for this movement). And from the start, I began to lightly moan. This moaning actually continued for most of this session.