“This is not allowed. If you are going to be in here with us, you need to behave properly, like we do.” Didi said loudly.
She proceeded to her cupboard and took out a bra and pair of her own panties. Handing them to me she said “Try this.”
“You want me to wear these?” I asked with a shudder of fear and embarrassment. She nodded and said “Yes, right now.”
“But, why?” I asked meekly. My younger sister was looking a bit shocked too. Her mouth was open, her hands trembling.
“Because if you dress up like us, maybe you will start being more like us… and that (pointing to my dick) won’t happen.”
Obedience was my only option, so I carefully removed my boxers while trying to hide my morning glory. “Don’t be shy”
“We have already seen your peewee a million times” they both said, finally reassuring me sensing how nervous I was.
Slipping on my elder sisters tight soft white panties while they both watched me… sent an electric current up my spine.
My cock would not fit and stuck out poking through the fabric uncomfortably. “Not like that.” Didi said while reaching out.
She grabbed my shaft and turned it upwards, making it stick out with the lacey elastic edge of her panties holding it up.
“Now the bra.” commanded my elder sister. I tried putting it on, but failed miserably. She took charge and slid it on me.
The sheer tight cloth strapped around my chest, constantly grazing against me. My nipples became instantaneously erect.
“Aaw he looks soo cute!” exclaimed my younger sister pinching my cheeks, who by now was really into this little game.
“Hmm. Fetch my school uniform from the clothes pegs over there sis.” My younger sister gave Didi her skirt and shirt.
They proceeded to dress me up. I was starting to enjoy this attention, a lot. I felt accepted, included in their inner circle.
“Maybe we should send him to school like this today!”
They teased me a little, but generally complimented this new look.
We were interrupted by the doorbell ringing, for us to let in our house cleaning maid. We then went off to school as usual.
Of course I had changed back into my own uniform, but my elder sister instructed me to keep her panties on for the day.
Sitting in class was a whole new experience. I watched the girls in the room and know that they too were wearing panties.
I realized that the same soft smooth, fitting sensation of my elder sisters panties was what the other girls were feeling too.
Having now felt what a bra rubbing against my own nipples was like, I fantasized about every other girls nipple in class.
I became aware that all this time, these female friends of mine, were enjoying a whole other kind of sensation constantly.
It was the longest day of school ever. I wanted to go back home desperately. I wanted to meet my sisters. I needed to.
When we did meet later that day on the way home, they acted as if nothing had happened. I checked my enthusiasm.
That evening after showering and getting ready for bed after dinner, Didi told my younger sister to lock the bedroom.
She turned to me with a wicked smile and said, “Tonight you’re going to sleep in my nightie.” She told me to strip naked.