One Quick Glass of Water.

As I shut the glass door behind me, I reflected on Carla's earlier words, and quietly padded my way to the bathroom, where I downed a small tumbler of water. It felt good, really, cool and crisp, and actually clean. My mind flicked to the crappy water at home, and reflected how even this little thing showed the difference between this place and my usual digs. You didn't even have to filter the tap water. I placed the glass on the counter, and looked back to where Carla had draped herself against the door frame in a classic pose, her hand drifting down the wood seductively.

"Two glasses of water... oh, you've got plans," Carla smiled, reaching out her hand to me again. I gripped it happily, but spun her around with a quick motion, causing her to gasp at the action. It seemed to bring her act to an end, and as I pulled her tightly against me, I let her feel my entire body against her back. I lifted my arm over her head, turning the slight twirl into a tight hug, and once more heavily breathed against her ear.

"Lots of plans, just like you and your sister," I grinned again, continuing the aggressive teasing I had begun in the hot tub. Standing, she moved again, enjoying the feeling of resisting me, before easing into the touch with a groan of pleasure. "So I believe a spanking was called for."

"What? Me too?" Carla gasped as my hand slipped down to her bare butt. I flattened my hand and brought it back. "No, wait that wasn't..." She arched as I pulled my hand back further, tensing myself against her.

"You said it was your fault too," I swung my hand quickly and stopped as I heard the quick intake of breath from her mouth in anticipation of the impact. It didn't happen, as I hovered my hand an inch away from her skin, before lowering it to caress her luscious ass. She grunted in response, pressing her hand back against me as I let my hand fall back again, making the flat palm.

"Fuck... are you going to punish me?" She whispered excitedly.

"Both of you," I grinned, allowing my hand to come down on her softly. Almost no impact at all. Just a touch which she eagerly anticipated.

"At the same time? You going to do it to us both?" Carla grinned, and I allowed her hand to slip from mine. She didn't move away, merely allowing her hands to set against opposite sides of the frame. I eagerly took advantage of the steadied position and allowed my hands to roam over her body gently, touching her carefully.

"Uh, uh, last warning. No more trying to get me riled up." I grinned, slipping my hand to her ass and squeezing it tightly in my palm.

"Oh, so I shouldn't tell you that I went down on my sister," Carla taunted with a smile.

I pulled my hand back and allowed the flat palm to impact on her with a soft smack. Her reaction was instantaneous, a yelp of pleasure and surprise bursting for her lips and her hands gripping tightly on the frame as she nearly jumped.

"If you don't want me to do that, don't talk about your sister," I growled against her ear, squeezing her ass again with the hand I had just smacked her with. Her breath came quickly and and a giggle seemed to flow through her. She shook her head softly, making no further response as I continued to let my hands explore her.

"But, you're going to punish her..." Carla gasped out, as my hand came down on her ass a second time. She bit back the gasp at the impact, and when I pulled my hand away again I noted a soft red beginning to form on her skin.

"And you too," I began to kiss my way down her back, her body reacting wonderfully to my various touches and teases. I could smell her arousal in the air, and I knew she was soaking wet. The desire to just give her what we both wanted was indescribable, but for some reason I was also enjoy this. Enjoying the feeling of this game, because it was a game. We both knew it.

"She did that to me you know," Carla groaned out as my fingers tweaked her nipples. The quick smack on her butt silenced the comment with a delighted squeal.

"Who needs a ball gag, now?" I asked, teasing my tongue up and down her spine as she leaned into the contact.

"Kaila does... fuck..." Carla blurted the last as my hand came down on her ass again, a little harder than I actually meant to. The wince in response caused a bit of nerves and I had to ask.

"You ok?" I quickly asked to a quick rapid head nod.

"Fuck yes, fuck yes, keep going... uh..." Her head returned to it's lolling state after a quick moment of lucidity. "Yeah, a ball gag while she's ...ow... on the bed next to me... shit..." The second and third smack against her ass didn't silence the filthy dialog as she continued. "Want to make her watch me fuck you... OW... Careful, that's the nerve... Yeah, fuck her husband, and make my sister a... Yes, that's it... Brent... can I move this to the bed..."

"Say please," I growled again, pulling her against me. I was hard as I'd ever been. The feeling of this acceptance was incredible. I had always been raised that there is one thing you never, ever, ever, ever, ever, ever, ever do. And I'd just freaking done it. Fuck I was still doing it. The realization that Carla wanted this from me was amazing. She wanted me to do something that I would never have dreamed of doing willingly.

"PLEASE! Please Brent," Carla groaned, "On the bed... do it..."