Changing room

My girlfriend, a new colleage from'work, took me shopping for underwear.
At the third shop, having tried a new set of red sexy panties and matching bra,
we were both horny and giggling in the changing booth at the back.
I looked myself in the mirror as Caroline looked on.
Then she said she'd get me a set in another colour and unhooked my bra and
whispered in my ear "get naked my little slut!"
That little command sent a jolt through me and made me very horny.
I smiled and took the bra off and the panties, as she watched smilingly.
"Wait here like that, Bitch!"
She took the underwear, and then laughingly also my dress and jacket and the underwear I came in.
She left and I stood there naked for a whle and then sat down on the small stool in the corner.
After a while, sitting listening to people coming and going in the other changing booths,
I started caressing myself slowly.
Someone opened the curtain a little but as soon as she saw my shoes on the floor
excused herself and closed it, which made me just more excited.
This is risky I tought as I spread my legs and caressed my clit, leaning against the mirror.
After a while, Caroline finally opened - she stood watching me with a devilish smile.
"Tse, tse,what a little horny whore you are ... now try this ..."
She pulled a cock replica dildo from her handbag and handed it to me.
"Suck it, make it wet, worship it and then fuck yourself with it!"
She stood watching, smiling, as I did as she ordered.
A woman in the booth nextdoor talked to herself about what she thought about the set she was trying,
as I licked and sucked the dildo, making it wet, and the started fucking myself with it.
Biting my lip so as not to make too much noise I brought myself to a wonderful climax.
I sat breathig hard, nervous but happy, listening to the sounds of the big shop.
"Good girl!" Caroline applauded and took the dildo out of me, caressing my face with it.
"Let's go to the next shop!"
She gave me my dress and jacket and I put them on, knowing without asking that I wouldn't be
getting my own underwear and ... maybe wouldn't even be trying new ones in the next shop.
We walked out, me holding her armand me holding the big dildo in my jacket pocket.