"Are sure you want this to happen?"
"I don't want it to happen. I don't NOT want it to happen. I want to stop worrying about whether it happens. Why? Don't you want it?"
"I'd be lying if I said it wouldn't make me happy, as long as you want it too."
"I guess I'm saying is that if it doesn't happen, I want it to be because it just doesn't, and not because of what people will think if it does."
"That's what I want too." Bill stroked my cheek.
"I love you, Bill," I said. He put his arms around me. I tried to do the same to him, but his left arm was in the way of my right, and I accidentally put my hand on his crotch. I could feel it getting hard. He kissed me on the lips, and I lay back on the bed.
He climbed between my legs, and I could feel his cock through his underwear. "Is this the right time?" he asked.
"Didn't we just have this conversation?" I asked. I questioned whether we were really on the same page or not. "I told you, I'm not trying to make it happen. I just want things to come naturally like they do for everyone else."
"No, I get that. I mean, is it the right number of days since--"
"Oh, that!" My concern was allayed. "I don't know if it's the best time, but it's definitely not the worst." Bill lifted the hem of my night shirt a little, kissed my navel and looked up at me. I smiled. He lifted it some more, so I pushed him off and took it off. He laid me back down and kissed my left nipple. Instead of looking at him, I closed my eyes and smiled more. He kissed the other nipple and then licked it. He kissed me, and I felt his balls against my pussy through my underwear. I reached down between our crotches.
"So soon?" he asked.
"No, I just need to adjust the hem." I pulled it away from my flesh and felt the puffiness of one of my lips. At that moment his cock slipped out of his underwear and I felt the head. "On second thought, yeah, take it off!" I said. He got off me and we both removed the last of our clothing.
Bill moved back on top of me. I could feel his cock against my thigh, and he asked, "What'll we tell your mom?"
"There's nothing to tell her, yet."
"I mean if it happens."
"It'll break my heart, but I'll tell her I don't know who the father is. That's the only regret I'd have."
Bill is my younger brother. Well, half-brother. My dad had a one-night stand with a woman named Mona at a convention, and Bill was the result. I didn't know about him until I was ten. Neither of my parents would have found out, but when he was seven, he and his mom were in a car wreck, and she went into a coma. My parents raised us together for the next few years. When Mona died, Dad wanted to keep all of us together, but by then Mom couldn't take the daily reminder of the affair, so they divorced. Some smart-asses say that money can't buy happiness, but it can make the misery more tolerable, and I guess they're right. Dad did well enough that he could afford to buy another house only a couple counties away, and they turned into one of those ex-couples who got along better after a split.
I was finishing college and Bill was just starting when Dad got sick. Bill and I were the only ones who could care for him. After several months, I found that my favorite part of the shift was when Bill came home. He has the kind of sunny disposition that probably helped Dad make it another year, and it made it easier for me to get through it too. I started cooking meals for all three of us. One night when Dad was asleep, Bill was on his way out to his part-time job, and I kissed him. I only meant for it to be a sisterly kiss, but he turned and kissed me on the lips and I didn't want him to stop. When he came home that night, we went out on the porch and talked. We both knew it was more, but it would be a while before either of us thought about doing anything more than kissing.
I didn't have a job lined up when I graduated, so it made sense for me to move into their house. The night I moved my things in, after Dad went to sleep, Bill came into my room. We lay on my bed kissing, but nothing else happened. He did the same a couple nights later, and the night after that I came to his room. I surprised him on his next night off by not wearing a bra. He ran his hands up and down my back while we kissed, which felt better without a bra, but he was too nervous to do anything else.
I had to go out of town for an interview, so I wasn't home the next two nights. On the way home, I barely thought about Dad; I just wanted to see Bill again. When I came home in the middle of the day, Bill was at the door dressed in a Hawaiian shirt and pants. He hugged me, told me he missed me and felt my back, disappointed that I was fully dressed. My hands came down, and I accidentally felt his butt. He was returning my earlier favor by going commando! I wanted to take him to bed right then, but Dad called from his room. Later that night I took a shower, and I didn't put any kind of underwear on. After Dad went to sleep, I nodded to Bill and invited him into my room. "I missed you, too," I told him. I put my arms around him. He did the same, noting the lack of a bra there. I smiled and said, "Yeah."
I moved my hands to his butt, and he was dressed the same as before. "Yeah yourself," he said with a smile.
I moved his hands to my waist. He moved them to my butt and smiled more. "Yeah again," I told him. I guided him to my bed. We hugged and kissed and rubbed each other's bodies everywhere for what must have been fifteen minutes before I put my hand under the hem of his shorts. I didn't make contact with anything but the lowest part of his butt, but it made him hard. He ground his hips into mine. I moved my hips up once to meet his, but then my bed squeaked, and we both lay still. We kept rubbing each other, and I got hotter, and he got harder. Suddenly he arched his back, and when he came back down, he wasn't hard any more.
"Wow," he said. He got off me, and we could both see a wet spot on my shorts. "Sorry 'bout that, Vicki," he said.
"I'm not," I told him.
"Really?
Bill had his hands on the waistband and was starting to push before I could speak. "Whoa, whoa! Slow down there, cowboy."
He looked dejected. "Right. My sister."