I'm feeling benevolent enough to let you cum today, but I don't think we should ruin your chastity streak. It would feel wrong to let you unlock your numb dicklet after so much time in chastity, so I'll allow a ruined orgasm in the safety of your cage.
For this JOI you'll need a vibrator or wand, and a high tolerance to sexual frustration.
Oh, and make sure you don't miss Goddess's powerful orgasm at the end. Don't you wish you could cum like that?