His is caged

You feel something abnormally hard near your tip when he puts the two side by side, and you can instantly feel why. The sissy's cock was locked tightly in a small pink plastic cage. he giggles at your surprised reaction, "hehe Sir you know the staff isn't trusted to be left uncaged! Only a family member is allowed to unlock it when they want to play. I know you have one of the keys sir..." He almost purrs, leaning forward to snuggle into the side of your neck and gently kiss, all while still stroking your cock. "If you freed me for a little bit, we could have some real fun. wouldn't that be nice, sir?"

This little sissy maid is obviously trying to seduce you to get what he wants, whatever that may be in the end. Even if you realize that, you cannot deny it's working.