I crawled slowly off the bed, careful not to wake my girlfriend. It was so thrilling feeling her panties dig into her ass, feeling each round cheek shift as I slowly maneuvered her body off the bed. I'd been awake for a few minutes and my panties were already moist with pleasure from being in her body.I'd cast the body swap spell on us last night without her knowing. I intended to play it off with surprise the next morning, but I couldn't help myself. I had to touch my new body.I'd always imagined what it would be like to swap bodies with her, to have her face, her tits, her ass, her lusty cries. I needed to see it all now.There was some adjustment getting used to how I moved, how the bedroom looked from her shorter stature, how her body jiggled and wiggled in alluring ways.When I was down off the bed I tiptoed to the bathroom and gazed in the mirror. My girlfriend's reflection gazed back, a little smile on her lips. I used her hands to touch herself, fingers splayed across my new breasts, luxuriating in the soft sight and feel of my new body. A sigh escaped my lips as I squeezed my tits. My fingers trailed down my side and slipped beneath my panties to find my pussy, already slick with desire.I slid inside myself, moaning as my pussy lips parted for my finger, excited as much by the feeling as by the sight and sound of my girlfriend masturbating. In my excitement I came quickly, body quivering after only a few strokes. It was enough to sate me for now.I carefully crawled back onto bed and prepared to act surprised at our predicament, knowing I wanted to experience my own cock inside me before I switched us back.

A lab accident gives a scientist the power to control minds, and he uses it for his own pleasure in At His Command, available only on Body Swap Stories and Smashwords. Preview here.
https://bodyswapfiction.com/enter/?p=13418