"Oh shit, I forgot!" Katie exclaimed. "I invited my friend Cara over so we could go out!"
I remembered meeting Cara a few times. She was also smart and beautiful. She didn't quite have the figure that Katie did, but it was still enough to have made me attracted to her. She had long, dark hair, C cup breasts and a nice hourglass figure.
We were all frozen by fear as we heard her ascending the staircase. Seeing that neither Amanda nor Katie was about to move, I had to think fast. I came up with the perfect solution just in time.
Cara reached the open doorway and looked in to see three people laying naked on a bed--her best friend, her best friend's brother, and some other large-breasted girl. That would be enough to startle anyone, I surmised.
"Oh my God!" she exclaimed, and looked like she was going to faint. I kept my cool and wished that Cara would want to join us and that Amanda and Katie would want her to as well. A look of calm seemed to come over Cara's face. She finished her thought, "Oh my God, Katie, I can't believe you didn't wait for me." Boo-yah, I thought. "You know I always found your brother cute."
Amanda snapped right up, her breasts bouncing as she did, and took the defensive. "Hey, he's all mine! This is a one time deal."
Cara began to unbutton her shirt, unfazed by Amanda's outburst. She approached the bed and said, "You're a fiesty one aren't you?" She finished unbuttoning her shirt and slid it off her shoulders. She ran her hands over Amanda's breasts, and Amanda's look melted into one of pleasure. "You've got quite the girl here, Joe," Cara concluded.
Amanda was still extremely turned on. She stood up, towering over Cara's 5'4" frame. "I'm all woman," she said, and with that, reached around to unclasp Cara's bra. Cara stopped moving and let her do it. Amanda slowly let the bra fall from Cara's chest, exposing her erect breasts. I thought it was a shame that Cara's chest didn't match up with Amanda's and Katie's. So I wished that her breast size would match Amanda's DDD size and that only I would be aware of the change. Her breasts ballooned to match Amanda's size. I decided that while I was changing breasts, Katie's might as well be DDD's as well. I changed hers so that only I would notice.
Cara tore off her jeans and her panties. She began to kiss Amanda. Amanda kissed her back. I stood up and walked over to them. Remembering that Amanda had said this was "a one time deal," I figured she wouldn't be upset if I fucked Cara. I walked behind her, admiring her soft ass as I did. My cock, which had never lost its erection, pointed straight at its target. Cara stopped kissing Amanda, glanced over her shoulder, and said, "What are you waiting for?" She turned around and began to suck Amanda's breasts.
I took her from behind. As I started to fuck my sister's best friend, my sister returned the favor on my girlfriend. She jumped off the bed, knelt on the floor next to Amanda, and positioned her face right in front of Amanda's pussy. She began to eat her out as only an experienced lesbian could.
We continued like this for a few minutes until Cara and Amanda came collectively. We all collapsed on the floor.
"Damn, Joe, you do that so well," Cara grinned.
"I know," Amanda said, "And to think that I was upset he saw me naked before."
"What are you talking about?" Katie asked her.
Uh-oh, I thought.