Dahlia reached down and grabbed the bottom of her t-shirt. Hesitated a bit, like she was debating if she should really do this, then pulled it slowly off and dropped it next to the couch. She was wearing white cotton bikini underwear with little blue dots and a matching bra. The panties and bra both had little blue bows right at the front. They were not meant to be sexy, just a cute combo that any teen could buy at any store, but right then I thought they were sexier than anything that Victoria's Secret had to offer. She was just standing there, looking down, sort of fiddling with her hands. Her cute little figure was just there for me to stare at. She started to turn around slowly so that I got a good look at every side. Then she did something I wasn't expecting.

After her first turn, she reached behind her and started to unhook her bra. I couldn't have turned away if a car had driven through the living room wall. She got it undone and slowly pulled down the straps while keeping the cups in place. This wasn't some sort of dance or strip tease. This was an embarrassed 18-year-old girl letting a guy see her boobs for the very first time. She pulled the bra away and let it fall beside her discarded shirt. Damn! It was a beautiful sight. Her breasts were not large but more than I had realized she was hiding. Probably a full A cup (32A I later found out) that was perfect in every way. They were small half domes that sat high and firm with no idea what the meaning of gravity was. Her areolas, almost dead center, were the size of quarters and a dark pink that made them stand out from her pale skin tone. Although it was quite warm, both were capped with small nipples that popped out and hard. They had a small amount of freckles over them that just added to the complete cuteness of the whole package. When she started to move a little, they hardly jiggled. So firm and perky, I wanted to jump up and take them in my hands and kiss them.

I let my gaze wander down her body. Her stomach was as flat as a board. Her waist was tiny, and bloomed out to well-shaped hips. Small, but perfectly in proportion to her small size. Her legs were lean and muscular.

Then she surprised me again. Her thumbs came down and hooked the waistband of her oh-so-cute panties, and she bent toward the floor and stepped out of them. At first, I thought that she either shaved, or had yet to grow hair down there. However, at second glance I could see light blond wisps of mostly straight, downy soft hair in a triangle that was hard to take my eyes off of. I looked up to see that she was slightly smiling, but her face was no longer pink, it was bright red in her embarrassment. She started to turn around again, (I think to avoid eye contact as much as letting me see everything.) When she was facing half away from me, I started seeing the best part yet. Her well-toned backside was sticking out from her petite frame by a couple of inches. When she had her back to me, it just got better. A perfect heart-shaped ass!

Let me say I have always admired a well-formed ass. I have looked at them with pleasure since the day I knew I liked girls. I have seen a great many in my day, from girlfriends to strippers, porn stars to swimsuit models, athletes to random girls on the street. I could go on and on about the merits of a firm, perky backside. My cute little 18-year-old niece's butt beats them all hands down! I know that there are many differing opinions between men about girls' butts, but there are some that are universally admired. This is one of those. Her legs went up and made a perfect ass of themselves. The holy grail of butts. Dahlia runs almost every day. She loves to hike, bike and even started working out at the gym with her track team this year. Even when at my house, she often rises before me and runs two to three miles. Her muscular butt is the trophy she gets for all this hard work. If you have never looked at a girl's track and field star from behind, I really suggest you try it. And right here, 5 feet in front of me was the nicest ass I have ever seen.

I really don't know how long I sat there. Dahlia did 2 or 3 slow spins and then stood still. 3 minutes 30 minutes? No idea how to tell the truth. I'm not really sure whether I even breathed. Dahlia let out a little giggle, and I was so glad to hear it that I snapped out of my trance. "What is it?"

She was looking down at the front of my shorts, where I was sporting a pup tent with the added bonus of a small wet mark. " It looks like it happened again," she said happily.

I was speechless as she was still standing there with nothing on but her rainbow slippers and a blush. "Well?" she finally asked. "Do you think I'm pretty?"

"Oh my God, Dahlia! "You are so far beyond pretty, I'm not sure that there is a word for it!" I replied without ever looking away from her beautiful nude body. "You are damn near perfect!"

She broke out in a huge smile that could have lit up the sky, her blush faded, and she stood up a little straighter, her breasts pressed out a little more confidently. She seemed to have totally forgotten that she was standing there naked. She looked both proud and extremely happy. "Oh Uncle Amias, do you really think so?"

I stood up from the couch, "Have you ever known me to lie?"

"Thank you!" She ran the 2 steps and jumped into my arms! I was standing there holding a gorgeous young adult without a stitch of clothes on. I held her close for a minute and whispered in her ear. "Thank you for letting me see all your beautiful secrets." I put her down on the ground. "Now I think you better get upstairs and get ready for bed before things get even more awkward." And without thinking, I gave her a soft playful slap on her bare rear end.

She looked me right in the eye and winked! Then let out a playful "Ummmm". She then turned and right in front of me she bent over and picked up her clothes. That wonderful ass in clear view. Then she slowly walked over to the stairs and turned for one last view of her breast. " I'll call when I'm ready for bed."

"Just go you little exhibitionist!" I half shouted, half laughed. And I'd be damned if my little, shy, innocent niece didn't wiggle her ass at me!

Well... with a smile that bright I figured I hadn't screwed her up too badly. I mean come on, all I did was a little harmless looking, right?

I grabbed the dirty dishes from the coffee table and took them into the kitchen. "OK you old perv," I said to myself. "That's it! "You had your fun looking at a young girl, but it stops right there!" I put the dishes in the sink and grabbed a glass of cold water. I kept thinking about that perfect petite body. I felt like I should feel guilty, but why? I didn't ask her to strip. I didn't molest her. She seemed so happy when she went up, and really didn't seem bothered by what had happened. Sure, I was going to masturbate like crazy tonight, thinking of my lovely niece, but what's the harm in fantasy? I guess I felt bad about not feeling bad.

After finishing up the dishes, a call came down the stairs."Ready for bed!"

I climbed the stairs and headed into Dahlia's room. I admit I was a little let down to see she had her nightshirt back on. I walked over, grabbed the sheet to pull it up when she stopped my hand. "Thanks for making me feel so special tonight."

"It was my pleasure Sweetie! But you know, we probably shouldn't have done that, and we definitely had better keep that secret to ourselves."

"I know that Uncle Amias, but I still enjoyed it." She was looking at me like she had something to say but didn't know how. "Is something on your mind?" I asked.

"Uncle Amias... Would you get mad if I asked you for something?"

"Of course not!" But that doesn't mean you will get what you ask for."

She looked at me for a minute looking for the words. "Would you teach me how to kiss?"

"You have never kissed a boy? Not at school, or summer camp, or on the track bus?"

"Nope. Most of my friends have. Sometimes they make fun of me because I never have. They call me prude. But I think that you would be a good guy to show me how."

'Oh! Great! Now what am I going to do?' I thought.

"Honey, I'm not sure whether that is such a good idea. I'm your uncle, and that's not proper. Plus, I'm older than your own mother! "Wouldn't you rather do that with a boy your own age?" I knew if she wanted me to I was going to do it. I was hoping she was going to back down.

"No. I want it to be with someone who I trust and won't make fun of me if I do something wrong. Even though you are my uncle, you are also my best friend. Besides, we weren't being very proper earlier, were we?" Well... she had me there.

"Are you sure?" I asked. "I would hate for you to do something and then feel bad about it later."

Her face lit up with that million-dollar smile again. "I'm sure!"

"OK, sit up". She sat up straight in bed while I sat next to her. "First thing is to just be comfortable. Put your arms around my neck and I will put mine on your waist. Don't overthink what you are doing; just let your body do what feels right. Now I'm going to lean in and kiss you, just feel the moment and relax. When our tongues meet, we just slowly explore each other and go with it. Most of all, enjoy it. Kissing can sometimes be the most passionate part of a relationship."

Last chance to back out, I thought. Then it was too late. I leaned forward and softly met her lips. They were full and soft and felt incredible against mine. I didn't rush to open my mouth, just enjoyed the soft lingering kisses she was giving me in return. At about the same time, our lips parted, and our tongues crept into each other's mouths. As most first kisses go, there was a short adjustment period. First she was a little timid but soon began getting a little more aggressive. We closed our lips to finish, just to start again. Her hands tightened on my neck, and she started rubbing my neck and the back of my head. My arms pulled her closer and started caressing her sides. I pulled my lips away just enough to take her lower lip in my mouth and softly nibble and suck on it. When I did, she gave a sexy sigh. My thoughts disappeared, I was seeing bursts of light behind my eyelids. I didn't think of right or wrong, just how this moment felt. My hand moved around and cupped her right breast. She pulled back just a bit and gave a sharp gasp. "Yes!" She half whispered, half moaned into my open mouth. Then she took her turn pulling on my lower lip as I rubbed my thumb across her nipple. I could feel her soft sighs as they went right into my open mouth. I squeezed the breast I was holding while I moved my hand in small circular motions. This made her moan even more into my mouth. Our tongue's were dancing circles around each other, and our bodies were trying to pull closer than they already were. Her hands were in my hair, pulling my open mouth harder against hers. I knew if I didn't stop now there would be no stopping. I started to lean back a bit, but she leaned towards me. I finally put my hands on her shoulders and gently pushed her back, loving the small whine she gave at our parting and giving her one small last kiss just as we parted.

"Wow". That's all I could say. I leaned over, resting on my arm. "Really WOW"

Dahlia was a little glassy-eyed but smiling widely "That was awesome! If I had known it was that much fun I'd have been begging boys to kiss me for years. Does it always feel so good?"

"I told you a kiss could be passionate." I replied, "Sometimes two people just really click when it comes to kissing. I'm pretty sure that there is no more "teaching" I can give you. That one got you an A+ for sure."

She was giggling again, and pointed at my shorts. "I can see that. "Looks like I'm three for three." Sure enough, I had a rise in my shorts that was undeniable. "Can I see it? I've never seen one before."

"Never? You live in the internet age!?! You have never seen a penis?"

"Well, babysitting with Ashley, we have to change her baby brother, but I don't think that counts. And both of us have laughed about the male horses out back... it looks like they have a guy trapped inside reaching his arm out!"

I had to laugh at that! "Yeah, I guess I fell somewhere between a baby and a horse in the size department. "Dahlia. You are a really young girl. I don't think you should be seeing your uncle's penis."

"Should my uncle be looking at me naked?" She shot back at me. I had to look at her to see if she was mad or just playing. She didn't seem upset.

"You got me on that one. So is this considered extortion or blackmail?"

"Why don't we just say a favor returned?" she said, smiling.

I stood up from the bed without any more thinking. I untied the gym shorts I was wearing and lowered them down. When my hard dick slipped free from the waistband it sort of bounced back against my body. Dahlia's eyes were glued to my crotch. "Whoa, it's so big!" I almost laughed out loud. It's the kind of thing a girl says to make a guy feel good about himself, but I could tell she really meant it. In truth, my size is quite normal, kind of big around, but a little on the short side if you ask me. But what guy in his right mind is going to tell a beautiful girl that?

I stood there and let her look for a minute or two. "So how long will it stay like that?" She asked without looking away from my crotch.

" Probably till I go to my room and can masturbate" I replied honestly.

"OK, but not until you kiss me just one more time. "You know, just to make sure I got it." She said this in a way that I knew she was just using as an excuse but since I didn't see much harm in doing what we had already done, I agreed.

"OK, but just one kiss."

I leaned in and we began kissing again. I knew I was in trouble right away. There were no awkward movements, no hesitant pauses, we started kissing like a couple who know exactly what each other wants. Her hands were back on my neck, mine were pulling her closer to me. It was like we had always been waiting for just this moment. My hand had a mind of its own and went right back to her breast, rubbing the hard little nipple through her shirt. One of her hands ran down my back, feeling so soft and warm. I moved my hand and lightly pinched the nipple on her other breast. I was rewarded with a soft moan against my lips. She moved her hand down and was rubbing my upper thigh, and it felt great, but my brain tried once more to put a stop to this. I started to pull away but the arm around my neck tightened. Still lip to lip, she whispered "No, it's okay". I'm not sure if she meant that she was OK, I was OK, or if the situation was OK, but I knew if this was what she wanted, I couldn't restrain myself anymore. Looking her in the eye, I put my hand behind her back and lowered her gently back onto her pillows. With her on her back and me on my side, I could kiss her and use my right hand to caress her all over. We continued kissing as my hands alternated, kneading both her breasts. Both her nipples were hard as little pebbles and, from the little sounds she was making, she seemed to get a lot of pleasure from this. I let my hand stroke down and ran my fingers lightly over her flat stomach. I then left her lips to run kisses down her cheek and along her jaw. When I started to kiss and lick her neck, her breathing picked up a bit. I have always been a sucker for someone kissing my neck, and it seemed she was too.

She reached down and took my hand in hers. She started to lower it from her stomach to her waist. I wasn't sure what I should do and stopped for a second. Her lips came down and she kissed my ear. Then she softly nibbled on my earlobe. She put her mouth against my ear again while slowly pushing my hand a little further. Her breath in my ear had my heart hammering like a drum, and she said just one long-drawn-out word. "Please".

I went back to her lips and kissed her deeply. My hand went below the hemline of her shirt and on top of her underwear. I let my hand cover her whole mound while pressing down but not centering on any part. Then slowly I started to explore with my fingers. I could feel her soft bush through the thin cotton. I let my fingers go down further. I could feel her slit. Her panties were damp through the crotch and I could feel the heat baking out like a little furnace between her legs. I ran my finger slowly from the bottom of her slit to the top where I felt her tiny little pearl. Her body went rigid, and she arched her back slightly. "Oh that feels so good!" she gasped. I traced that path a few more times while at the same time kissing her neck and ear. Her panties were now soaking wet. The feel of her was incredible. I started to circle her nub and press harder. The reaction was instant, her breathing was like an engine, and she was trembling all over. Her hand reached over and grabbed my dick. I thought I might explode right then. It was obvious that she had no idea what to do with her hand, but any touch at all was enough to drive me crazy. I intensified the pressure on her clit and nibbled her ear. She was practically panting now.

"Unnnggghhh oghhh anhhh" I'm not sure what language it was, but I thought I knew what it meant. Her chest and shoulders jerked back, then her stomach raised up and for a second she seemed to stop breathing. Then, in a huge rush, her breath drew in, and she yelled "OH Yes!" Her strong legs clamped together on my hand then flew apart just to clamp shut again. I kept circling her clit but reduced the pressure a little. She was taking huge gulps of air and her hips kept bucking up and down. There were little involuntary jerks through all her muscles. Her face was red, and her eyes squeezed shut. If anyone was to see her they would think she was in great pain. I have a feeling it was quite the opposite. I stopped rubbing her and placed my hand flat against her mound again, just pressing down against the whole area. She whipped her head to the side and almost screamed at me "Kiss Me!" Who was I to deny a lady?

After a few more minutes of soft kissing she seemed to be back in control, so I gently kissed her lips and backed off. "What was that?" she panted.

"Congratulations baby girl." I smiled down at her. I pulled her in close to my body. "I'm pretty sure that you just had your first orgasm."

"Well, I'm going to want to have a whole bunch more of those!!!!" She laughed. "I thought I might be having a heart attack and a stroke at the same time as being hit by lightning and I loved every second of it! I feel like I wet myself! I want to call everybody I have ever met and tell them about it! I want to update my page to I Had An Orgasm.X*xx! I want to scream! That was so cool!"

I had never had the privilege of seeing anybody have their first ever orgasm before, let alone be the one to give it. She acted excited, happy, and even proud of herself. I had a mixed feeling of arousal and pride. I felt like screaming myself!

She pulled my head down and started giving me small kisses all over my face. "Thank you! Thank you! Thank you!" She pushed my shoulders back till I was rolled over on my back, and she was leaning over me. She looked deep into my eyes and, with no embarrassment at all, said "I don't know what to do you have to show me." She reached down and gently held my dick in her small hand.

"It's okay, you don't have to..." She wouldn't let me even finish, she put her finger against my lips. "Don't even try to stop me!" She said, looking in my eyes like a girl possessed. I almost wondered what would happen if I tried to stop her. I figured I would let her go.

Dahlia always keeps a bottle of cocoa butter on her bedside table. I pointed to it. "Take a little of that, and just do this." I took her hand and grabbed the first two fingers and simulated stroking. She took a little lotion in her hand and started.