The next several weeks passed in a blur. Sue Ann and I would come home from school and go straight to her bedroom. Once there, we would strip off our clothes and lie on the bed. I loved holding her body and kissing her, letting my tongue probe her mouth and feeling her kissing me back. We would carefully avoid other parts of each other's body until one of us could not take any more and grab. Usually it was me. After feeling my dick grow as it rested along her thighs and crotch, I would start rubbing my hands gently over her breasts, fondling them, playing with her beautiful nipples. Then I would surrender, and start sucking her tits and her nipples. Once that started, Sue Ann would begin to fondle my dick and my balls, and stroke my dick. She, and I, had learned quickly how to bring the other one to the very edge of coming, and then stopping and letting them back down slowly.

Today I told her that I had a surprise for her. As we lay there, I slowly slid my middle finger into her cunt and gently started pumping it in and out of her. She started getting very wet and slick and began to fuck my finger. As she moaned in pleasure, I slipped another finger into her cunt, and kept on pumping. As I continued to pump in and out, I spread my fingers out and stretched her tight wet cunt as far as I could.

"Oh my God, oh my God, that feels so good," she cried. At that point I stuck a third finger in her and furiously began to drive them in and out of her cunt, causing her to slam her body up against my hand. She again began to scream that she was coming and I felt her juice spurt out of her pussy, once, twice, three and then four times, spraying a couple of feet down the bed. As she shuddered and began to relax, I took my middle finger out of her cunt and reached down and began to rub her tight little asshole.

"Logan, what are you doing?"

"Remember the other day when I stuck my finger in your ass, as you were coming? I want to do it again if you're willing to try."

She took a deep breath, paused, then said, "Do it, Logan, but go slow."

I slowly began to rub around her anus, and then slid the tip of my finger into her. She gasped as it went in, and I asked her if I was hurting her. She said, "Just a little. Wait a bit." As she took a big breath, I pulled my finger almost all the way out and then pushed it back in, up to the second knuckle. I spread my two other fingers which were still in her cunt, and then curled them back and forth hitting her G spot. Sue Ann immediately jerked her body back and forth and started telling me, "Deeper, go deeper in my ass and my cunt. I'm getting excited. My ass is really starting to feel good."

As I fucked her ass and her cunt with my fingers, my dick had gotten stiff as a fence post. I got on my hands and knees, next to Sue Ann. As I continued to finger-fuck her, she grabbed my dick and started stroking me. Pre-cum was leaking out of my dicks in long strands. Sue Ann rubbed it all over my shaft, and my balls. Suddenly I felt her finger, wet with my pre-cum, rubbing on my ass. I pumped her hard and fast, as she stroked my dick.
 
"Sue Ann, I'm coming, I'm coming!" As I said that, she slid her finger into my ass, and jets of thick, white sperm shot out of my dick, onto her body and bed. At the same instant her cunt and ass tightened around my fingers and she once again squirted her juices into the air. I collapsed onto the bed as she pulled her finger out of my ass, and I, in turn, pulled mine out of hers. I slid closer to her and gently licked her pussy and her clit, then wrapped my arms around her hips, resting my head on her thigh.

"That was incredible, Sue Ann. I didn't think it was possible to come that hard. How was it for you. Did you enjoy it?"

"It was wonderful, Logan. I can't believe all the things I've learned, the fun I've been having. It's been so fantastic."

"You're not the only one that's been learning new things.

Remember, I told you I didn't have that much experience. I never even read or heard any guys talking about having a finger stuck into their ass. I don't know what you did, but.. damn, did it make me shoot my load." (Obviously, Sue Ann had hit my prostate, as any man in his forties who has been to his doctor for a check-up can testify to. But it's nowhere near as much fun at the doctor's).

As we cuddled together and relaxed, I reminded Sue Ann, that we were going to the Spring Dance at the end of the next week. "Some of the guys have been asking me who I was taking, and I just tell them 'the prettiest girl in the school' is coming with me."

"Logan, you don't have to take me. I believe you when you told me weeks ago that I was desirable. You don't have take me, your friends are going to laugh at you. Their going to say couldn't you do better than your sister?"

"Sue Ann, you may be right. They may laugh at me. But... you're also right, I couldn't do better than my sister. You're going into town tomorrow, with money I'm going to give you that I saved from my job last summer, and you're going to buy a fancy dress to wear."

As I held her close to me, I felt tears on her cheeks. I kissed her gently and told her, "No tears."

The day of the dance arrived, and our Dad loaned us his truck to go into the dance. I had rented a tuxedo without telling Sue Ann. I didn't want to be outdone. I had seen the dress she would be wearing. It was a shimmering blue material that complemented her blue eyes and blonde hair. The tops of her tits showed where the dress was cut low in front. The hem of the dress stopped just below her knees. She looked fantastic.

We got to the dance a little early because Sue Ann didn't want everybody looking at us when we walked in. She still felt self-conscious. As we walked in, the couples that were already there greeted us. Some of my friends' mouths fell open. They hadn't seen Sue Ann before in a fancy dress. Growing up the way we did on our farm/ranch, Sue Ann and I always wore jeans and tennis shoes or boots. I think some of my friends were really shocked to see Sue Ann dressed up. As we would say in Texas, "she cleans up real nice!"

The rest of the evening went by in a blur. I danced with Sue Ann, but not nearly as much as I thought I would, because some of the other guys would come over and ask for a dance. Several times as she was led away to the dance floor, she would look back at me and smile. A very happy smile. I, of course, asked some of the other girls to dance. After several dances, I got to dance with Sue Ann again.

"Logan, why are you dancing with the other girls?"

I almost choked and started laughing. "Sue Ann, are you jealous? I'm dancing with the other girls because if I don't, I'm going to be sitting there all by myself. In case you haven't noticed, a bunch of the guys have been asking you to dance. I guess they figure its all right with me, because you're my sister. And you know what, it is all right with me. I told you that I was bringing the most beautiful girl to the dance, and I did. Just remember, you're going home with me. Now shut up and dance, Swan."

"What did you just call me?"

"Swan. I think that's my new nick name for you. From now on when you start feeling sorry for yourself, I'm going to call you 'Swan', and you can remember tonight."

Much later that night, as we were driving home, I had my arm around her shoulders, and she had her head on my shoulder. She looked up at me, and then kissed me hard and said "Thank you, Logan. Thanks for everything."

A little while later, as we turned into our property, she scooted over in case our Dad was up, but she looked at me and said, "Thanks again, but don't think we're done learning!"