Michelle served us another couple of drinks, and we were by now quite merry. We were giggling about Michelle’s outfit, and his face was constantly red in embarrassment. That did nothing to quell his excitement, however, and the bulge in his panties was still all too obvious through his little maid’s dress.

“Oh, I nearly forgot,” chirped Sally, reaching into her handbag. “I bought you a present, Michelle.” She brought out a gift-wrapped package and handed it to him.

He hesitated before taking it from her, and we watched as he unwrapped it. I had an idea what it might be, as Sally and I had talked about whether it would be appropriate for Michelle, but I didn’t know she’d gone ahead and bought it.

His face fell when he opened it. It was a pink chastity device, designed to look like female genitalia, but locking his manhood tightly in place, preventing any kind of erection.

He looked at me pleadingly. But I was too merry to have any sympathy.

“You look very pretty in your maid’s dress and frilly panties, Michelle,” I told him. “But that unsightly bulge is ruining your appearance. I think it would be best if you let me put this on you. You know it’s for the best.”

Already the thought of being constrained in the device was having an impact on his excitement. I summoned him over to me and made him lift his dress. I tugged his knickers down and took the device from him. Sally managed to read out the instructions through her giggles, and after a couple of carefully placed flicks I managed to get it on him. I locked it in place and put the key on the table.

“There!” I laughed. “That looks much better, doesn’t it?”

Sally laughed. Michelle looked crestfallen.

We made him fetch us another couple of drinks that we didn’t really need, before Sally asked “What time does Michelle go to bed?”

I looked at her and then at my watch. It was ten thirty.

“Well,” I said, “I suppose it is quite late. Maybe we should get her ready for bed.”

Sally giggled. Michelle looked confused.

“Let’s get her ready for bed, and then she can spend half an hour with the grown ups before we put her down for the night. Shall we, Sally?”

Sally needed no further encouragement, and we lead Michelle upstairs.

I pulled her dress up over her head, leaving her in her bra, panties, stockings and suspenders and high heels.

“Does she wear a nightie to bed, or does she need to be put into a nappy?” asked Sally.

I was only too happy to play along, and replied “Well sometimes she goes to bed in her knickers and a nightie, but I think tonight it might be better if she has a nappy on. What do you think, Michelle? Would it be better if you had a nappy on?”

Of course Michelle was speechless. The thought of being put into a nappy in front of Sally was almost unbearably humiliating.

“Well?” I insisted. “Do you think you need a nappy on?”

When he still didn’t reply I took matters into my own hands, and hauled him over my lap. He really was quite the pathetic figure as I smacked his bottom mercilessly for several minutes. By the time I’d finished his bottom was bright red, and he was willing to accept whatever fate was to befall him.

Sally undid his shoes and pulled his stockings down. I removed his bra and knickers.

Standing naked before us, with his chastity cage so obvious, he cut a thoroughly forlorn figure.

Sally asked me where I kept his nappies and I directed her to the wardrobe in the corner. She took one out of the packet and spread it out on the bed.

Before long he was securely encased in a bulky disposable nappy, pink plastic baby panties and a baby doll nightie. Sally pushed his dummy into his mouth, to complete his humiliation.

We allowed him to come back downstairs with us, and made him sit on the floor while we finished our drinks.

“If it’s okay with you, Sis,” Sally said, somewhat the worse for wear, “I’ll stay tonight. Maybe I can share your bed if baby Michelle has the spare room?”