This is the day you've been anticipating nervously... you don't deserve to be in control of your dick. you need to be locked up for life, and that's exactly what I'm going to do to you. I really don't like that you can stroke whenever you want. I don't want you jerking, orgasming, or even getting pussy. Chastity is the only way to ensure that can happen.
I'm going to sensually you into your cage. After all, it's where you belong. I'll give you one last look at my ethereal body while your cock still has freedom... Then I'll brutally strip you of every bit of your masculinity as I squeeze your cage on. Getting locked up is what's best for you and I'll be sure to guarantee you never get to release again. Say your vows and accept that chastity is your new life.