I've allowed you to cum freely for too long, loser boy. Come here now! Get down on your knees and worship me and my perfect body! Don't even think about trying to stroke your cock, because I've put you in a chastity belt and only I have the key. You won't be allowed to orgasm unless I give you explicit permission. I'll mercilessly torture your cock and balls, slave.
Lady Velvet knows how much you want to jerk off right now. Seeing her in this sexy lingerie, hold-up stockings and high heels - but she's not going to allow it! You'll stay chaste and beg her to release your pathetic tiny dick for just a few minutes. In the meantime she'll just take your money and your pride!
That's right, you have already put on the chastity device and Mistress Velvet shows off your keys. She wears them as fashion accessories on a necklace around her sexy neck. She tells you that you will never be allowed to cum if you won't do your chores and duties. She is very demanding and wants you to pay regular tributes to her.