The List

We laid there for a few minutes, basking in a well-earned post-coital glow. After a while, my sister rolled off me, resting on her side, facing me.

"I think we better set some ground rules," she said. "Just so we both know what to expect."

"Okay," I said, not really knowing what was coming next. I was still a little overwhelmed, and more than a little spent.

"I told you I love you, and I'm going to keep fucking you for as long as I possibly can," she said. "But I'm still going to marry Todd, and I'm still going to have sex with him. At some point I'll have his children.

"You'll stay married to Lana," she continued. "She'll have your child soon, and hopefully a couple more. You'll keep having sex with her.

"Whenever it's possible, I'm going to have your cock inside me," she said, reaching down to grab the member in question. It was limp from overuse, but I still felt a stir when she grabbed it.

"What we're not going to do," she said, " is act like secret lovers. No whispers, glances, ass grabs, or anything like that. Whenever we're around anybody else, we're just brother and sister." She paused, waiting for a reaction.

"Sure," I said. "No problem." She didn't seem convinced.

"I'm serious, David," she said, her hand leaving my groin. She raised herself up on her elbow to stare at me.

"I don't want to get caught," she said. "I have no interest in marrying you, or announcing our forbidden love. I am not prepared to have our relationship become public in any way. You have to understand that."

"I do, Lisa," I said. "I have no problem with it, really. I'm still just getting used to the idea of the relationship in the first place."

"Okay," she said. "Now, let me tell you about the good stuff." Her hand went back to my now semi-erect cock.

"You can have me in any way," she said. "I'll do whatever you ask or tell me to, as long as you are nice about it. I want to be submissive, but I don't want to be called slut, or whore, and I'm not going to call you Master. Or daddy.

"You can fuck me however you want. You can cum in me, on me, whatever you want," she said. I was definitely responding to her words, and my shaft was now fully erect, throbbing painfully.

"Of course, you can't cum in me yet," she said. "After the first time I let you, you can whenever you want. Same thing with my ass. You can't fuck it until I say, but after that you can shove this inside my tight little asshole whenever you desire." I moaned.

"So when do I get to do these things?" I asked. I had moved my arm under her and was running my finger along the crack of her shapely ass.

"Don't worry," she said. "It'll be soon enough." She gasped as I ran my finger over her anus.

"You sound like you have a plan," I said.

"I do," she replied. "Would you like to hear it?" I pushed the tip of my finger into her ass.

"I would," I said. Her hand was increasing its pace on my cock, but I knew it would be a while until I came again.

"Tough shit," she said, laughing. "It's going to be a surprise. You'll love it though, I promise." She closed her eyes as I pushed my finger further into her tight ass.

"Can you give me a hint," I asked.

"Sure," she said. "Here's a hint.

"I've been fantasizing about all of this for years. I've dreamed of fucking you in so many different ways. I've watched a lot of porn, and I have about a thousand specific fantasies I want to fulfill with you.

"I'm sure that we'll get to each and every one, but there are two that are very specific. The first time you cum inside me and the first time you fuck my ass. Those two will be done according to my very detailed fantasy scenario."

"Wow," I said. "That's pretty wild."

"You have no idea," she said. I was thrusting my finger in and out of her ass now, and my thumb had found her clit. She whimpered.

"I'm going to be a totally depraved sex goddess with you," she said. "I'm going to do things that I wouldn't do with anybody else."

"That sounds good to me," I said. While I hadn't managed to be nearly as vocal about it, I certainly felt the same way.

"If I said anything like this to Todd, he'd probably leave me," she said. "He's a good lover, but he's kind of a prude."

"Really?" I said.

"Yeah," she whispered. "Sex is good, but it's pretty predictable. Usually he goes down on me until I cum, then he brushes his teeth, then he'll fuck me. Except for rare occasions when he's drunk, it's always either missionary or I'm on top.

"One time, I laid on my belly and spread my ass for him. I wanted him to fuck me that way. Not in my ass, just my pussy. He said it looked 'gross' and then just left me there." I laughed.

"That makes him an idiot," I said. Lisa smiled at me, and then kissed me. As we kissed, we both increased our rhythm on each other. Though she was new to me, I could tell she was about to cum. I wasn't that close, but I was getting closer. Suddenly, she let go of me and pulled away.

"Let's see what you'd do," she said. She rolled onto her stomach, reached back and pulled her perfectly shaped ass cheeks apart. I stared in awe at her swollen pussy lips and tight anus. Though I had never done it before, I felt powerless to stop, and I leaned in and licked her puckered asshole. She shrieked.

"Jesus," she yelped. "That felt amazing. Do it again."

I did, and she started moaning. I ran my tongue from her ass to her pussy, teasing her clit, then running back to her ass. She was squirming, pushing her ass back at me every time my tongue grazed her tight hole.

"God David," she rasped. "I'm so fucking glad you're dirty. I was worried you wouldn't be."

"Don't worry," I said between licks. "I'm just as dirty as you, I think."

"Good," she said. "Then hurry up and put your big dick in my cunt."

I was happy to oblige. I rolled on top of her, and as she held herself wide, I slid into her slippery pussy with no problem. She let out a low guttural moan.

"Fuuuck," she said as I pushed in to the hilt. "Goddamn that's good. Just stay there for a second." I was holding myself up, my pelvis pressed firmly against her ass. She pulled her hands up from her ass and stretched them over her head.

"This feels so amazing," she said.

"It does," I said. It was the best feeling I had ever experienced. I felt like I could stay there forever. She had different ideas.

"Fuck me," she said. "Deep and slow."

I slowly pulled all the way out, until just my head was inside her, and then pushed slowly back in.

"Ahhhhhh," she sighed. "God, I want you to do this to me forever." I wanted to be able to.

I kept going, keeping an incredibly slow and steady pace. I felt a familiar tingle in my balls. I wasn't going to cum yet, but it wouldn't be long.

I pushed back a little, so I was more kneeling, and used my hands to spread her ass apart. I watched as my cock slid in and out of my sister, her juices coating my shaft. I groaned.

"Does that look good, baby?" she asked. I watched her slide a hand underneath her, and soon I could feel her working furiously on her clit.

"It's amazing," I said. "I wish we had a camera." She giggled.

"We do," she said. "But that's for later. Right now, you're going to make me cum." Her ass started moving up to meet my thrusts, which were getting faster.

"Fuck, cum for me," I said. "God, I'm going to cum." I felt my orgasm approaching rapidly.

"I'm cumming," she said softly. "Uhhhhhhhhhhhhhhhh," she sighed. I felt her muscles contracting around me as she came. I felt myself cross the point of no return. I wanted desperately to cum inside her, but she must have sensed my desire.

"Pull out," she gasped. "Cum on my ass, big brother."

Hearing her say that was enough to do it. I buried myself in her completely, and then pulled out. I stroked my cock, shooting cum all over her ass and back. It wasn't as big as the others, but considering the amount of cum I'd produced in the last 24 hours, I was amazed.

I leaned down and kissed Lisa's cheek.

"That was amazing," I whispered in her ear. "I hope it's always this good."

"Fuck that," she said. "I hope it keeps getting better."

I got up, went to the bathroom and cleaned myself off. I came back with a damp cloth to clean her up, but she stopped me.

"Don't clean it off," she said. "Just rub it into my skin. I want to feel your dried cum on me for a while."

I was happy to oblige, and I half massaged her as I rubbed my cum into her ass and back. After a while, I had to get up to pee. When I came back to the bedroom, Lisa was standing at the foot of the bed. I was still awestruck by the perfection of her body. I walked to her, grabbed the back of her neck and kissed her deeply.

"Thank you," she said, breaking the kiss. "I better get dressed before your wife gets home." I looked at the clock and realized we had been naked and fucking for almost three hours. I grabbed my jeans and a t-shirt.

We went down the stairs, and Lisa slipped on her clothes. We went to the kitchen, and I had just finished pouring her a glass of water when Lana walked in the front door. My heart almost stopped, until I realized that we were both dressed.

We said hellos, and after about five minutes Lisa left. I felt nervous the entire time, like Lana was going to pick up on something. But Lisa was smooth, saying she came over to check on me after last night. She and Lana shared a couple laughs about Todd and me. After Lisa left, I went upstairs with Lana. The bed was a mess, which she scolded me for, so I made it. We lay on top of the bed and she told me about her visit with her parents.

I was trying to listen, but my mind kept wandering back to what had transpired on this bed less than 30 minutes ago. The though of Lisa walking around with my dried cum all over her was intoxicating.

"Don't forget about Friday," Lana said, bringing me back to reality.

"Right, my birthday," I said. Lana had planned to take me out for dinner on Friday to my favourite restaurant. A couple of our friends were joining us.

"I'll be having dinner at my mom's a couple nights this week," she said. She knew I'd probably be working late most nights, and she was finding pregnancy to be a bit draining. Her mom would pamper her and feed her.

"No problem," I said. Lana had turned on her side and I massaged her lower back for her. She was eight months pregnant, and though she had had a pretty easy time, she was getting a little weary at the end. Amazingly, her sex drive had gone in the opposite direction, and she was hornier than she had ever been.

After I rubbed her back for a while, she turned to her other side and started rubbing my chest. I knew this was a sign that she was looking for sex. Normally I'd be all over her, but given the intense sexual workout I'd had with my sister, I wasn't sure I'd be able to perform.

Not wanting to let her down, I gently undressed her and went down on her. I licked her to two orgasms, and when I was done I found I was hard yet again. She turned over and I entered her from behind. I fucked her softly, thinking all the while about fucking my sister. Lana came again as I shot my load deep inside her. She crawled under the covers and was asleep in minutes.

I went into the bathroom and gently washed my now raw penis. I left Lana sleeping and went downstairs. I grabbed a Diet Coke and sat down in front of the TV. Just as I turned it on, the phone rang. I looked at the called ID -- it was Lisa.

"Hello," I said.

"Hey Bro," she said. She paused for a second. "Is Lana there?"

"She's sleeping," I said.

"Are you sure?" she asked.

"Yep. What's up?" I asked, trying to keep things normal.

"Pretend like I'm telling you I left my wallet there," she said. It took me a second to get it.

"Hold on, I'll check," I said, getting up. "I'll check the kitchen."

"I can feel your cum on my back," she said.

"It's not in the kitchen," I said. She was driving me crazy.

"Did you fuck Lana?" she asked.

"Yep," I said. "I'll check the front hall."

"Wow, you're amazing," she said. "Next time I'll have to make you cum five times."

"Okay," I said. "Sounds good." She laughed.

"Before I forget," she said, "This Friday is a surprise party for you at our place." Lisa lived with Todd in a nice sized house about 30 minutes outside the city.

"I'm not telling you to ruin the surprise, but you need to make sure you stay here that night, without Lana," she told me. "Todd's going to be away on business, and you need to be here so I can give you your birthday present. Can you do that?" she asked.

"Yep, I think so," I said. "It's not here, Lisa."

"Hey," she whispered. "Do you want to know what I'm doing right now?"

"Oh God," I groaned. I didn't think I could take anymore.

She giggled. "Just kidding, bro. Rest up -- Friday's going to be a night you'll never forget."