"Oh...I feel really weird." Kim sighed. "What's wrong?" I feigned concern. "I just feel really woozy Eric. What was in that shit I drank?" Kim groaned. I grinned as I prepared myself to penetrate Kim. "You will probably feel alot different in a minute. In fact I promise you will." I gripped Kim's body trying to prepare myself for what I was about to do. I was nothing more than a side piece to Kim, I was her little throw away affair. That was about to change though. I slammed my erect penis into Kim as she laid on the bed. I heard Kim moan as the feeling hit me almost immediately. I felt myself rush forward and then I was suddenly laying on my back looking up at the ceiling. I felt sensations shudder through my new body as I felt myself being penetrated. I heard my old voice grunt out "What the fuck?" I immediately raised myself up causing my old balls to slam into me. I looked into my old face "Hmm..I never knew my cock was that big" I moaned. Kim looked puzzled as she stared into her old eyes. "What..what the hell did you do to me?" I grinned at my old body.."It's quite simple Kim. I'm taking over. Now get your dick out of me and get the fuck out of here before my husband gets back."