I was reaching into my pocket to pay for an inflatable flying saucer and an alien wristwatch, when I noticed that the cashier was pulling on her nipples and unbuttoning her blouse. My eyes widened as she stuck her hand down her tight blue jeans and started rubbing her pussy. I glanced behind me in alarm, but the other customers didn't seem to notice anything unusual.
The Alien Shoppe in Roswell was busy with customers. I looked back around at the pretty brunette, and noticed that she was waiting for me; her blouse was buttoned, and she had an innocent look on her face. Her lip gloss was dark purple, and she smelled like lavender.
"Twenty-five fifty?" she asked, with a slight smile at the corner of her lips. All of a sudden I could see her breasts through her shirt, and her pants were missing, revealing her shaved pussy. She licked her lips real slow and arched her back. Her nipples strained against her transparent shirt, and I could see she was wearing silver stilettos.
I gasped, and just as suddenly she was dressed again. Was I going mad? My cock was stiffening in my pants. What the hell? She was in blue jeans and tennis shoes again, with a white button-up blouse, as she put my purchases in a green bag with an alien face on it.
"What? How?" I asked, as I looked at her carefully.
"Have a nice day," she said, as she started helping the old lady behind me. I grabbed my bag and started moving toward the door. She appeared again, between me and the door: facing away from me, bent over, with her hands flat on the floor. Her pussy was glistening, and her breasts hung down seductively. She reached back, stuck a finger in her pussy, and moaned. I turned, quickly, and there she was at the counter, as if she had never left. When I turned back, her naked body was gone. I am totally losing it!