Im a grown man, getting close to 40, and I still get a raging boner when I look at a young girls round ass. I cant help it. They are everywhere too. At the grocery store, on the beaches, definitely at the malls.. there are little girls... 10 to 14 yo with perfect little round ass's that I just want to squeeze. I've got a buddy.. known him since high school. He had 2 kids.. boy and a girl. The boys 16.. and the girl just turned 13. I was there when both were born... and Ive always been like a uncle to them. The daughter started taking dance classes around 8yo. Since 9 yo, she developed the best ass I've ever seen. For the last 4 years Ive been staring at this beautiful round bubble butt on this girl and have been dying to grab it and fuck it. I got my chance 2 weeks ago at my house. Her mom and dad went on a "romantic weekend" trip and the son stayed at a friends house all weekend. At first the daughter ( i'll name her Amy but thats not her real name ) was going to stay at her grams, but that didnt work because she got sick. So... they asked me. Sure.. she can hang out here I told them.. So Friday came and I picked Amy up after school and she grabbed some clothes for the weekend. We went to my house ( almost a mile into the woods ) and had supper. After supper she wanted to sit in my hot tub. She went into the spare bedroom and came out with what I will call dental floss on. She told me shes never worn this because her mom has no idea she even has it. I can see why. Her mom would freak if she saw how ... small.. it was. She hopped in the hot tub and asked if I was getting in. I said sure,, and went an put on some shorts. We sat in there 20 min or so.. and talked about all kinda stuff I didnt know she knew. Like why a girl cant sleep around, but guys can? And why do guys stuff there pants when girls will find out anyways... And then my favorite " do all guys expect a blow job by the 2nd date?" I got up.. out of the hot tub... but on the way out.. she gave me a real good spanking. Now.. let me tell you where all that comes from. Ever since she was 10yo.. we have a spanking game going on. I would spank her butt when no one was looking... and she'd spank mine when no one was looking. She did it for fun... I was doing it just to touch her ass. The older she got... the better my spanks got. They went from jut a quick "smack" to almost a full grab an lift of her ass cheek. So.. back to the story.. she gave me a good spanking on the way out of the hot tub. So when she got out, and walked through the kitchen... I chased her 2 times around the kitchen table before I caught her. I bent her over the table.. and with her mostly bare ass showing... I gave her about 5 good spankings... ( grab an lifts ) The last one... i kinda rubbed my finger up her crotch. To my happiness.. it didnt even faze her. She left.. with a lil red ass and vowing revenge Later that same night.. Im watching Tv with her and i get up to grab a drink. Im standing at the counter.. and all of a sudden i feel something touching my balls thru my pajama pants. I turn around and its Amy... putting her hand thru my legs and up to my nut sack. She giggles and says "how do YOU like it??" And turn and hops away. I say out loud... "I kinda liked it" .. and I hear her real softly say "me too". So she goes to take a shower before bed... and realizes she forgot pajamas. So I give her one of my 2XL t shirts to wear like a nighty. ( shes like 5-2, 90 lb) After her shower... she comes out .. wearing my t shirt... except its been tied up so it barly covers her belly button. In full view is the panties shes wearing. I know I should say something... but I dont. I do get lots and lots of looks at her great ass and camel toe though. I dont ever realize Im getting a boner when I stand up ... and my pajama pants look like a tent. She sees the "poking" and giggles and says "awwww uncle doug... you got a boner from me??...." I adjust it an go into the kitchen. When I come back out she says "do that again..." I ask "do what again??" And she says "adjust it again... you know... move it around" I'm like "I dont think so... " And she give me the " awww come on .. pleeeeeeeese " So.. I grab it and adjust it a few times in my pajama pants. Shes like "daaayyyummm ... uncle dougy's gut a BIG one... " I'm like "yea.. right... its not that big" and I sit back down on the couch. She hops a little closer and says "well... let me see it.. i can tell." I say "your 12yo.. how the hell can you tell?" She says "im almost 13... and someone taught me a trick." She opens her palm and says "if its longer then it is between my thumb and my finger then it will give us ( girls ) orgasms... but it is shorter then that.. then you wont be able to hit the right spot" I asked her.... who told you all that? She said some girls at school said it. I said "middle school girls know crap like that??? " She said "yup.... ok .. so let me see " I pull my pants down low enough to pull my cock out and she does her little measuring thing. Sure enough.. I was almost 2 inches past her finger. "Wow... you are huge." I say "thanks.. i guess" Then. before i get my pants back up.. shes got a firm grip on it.. I know I should say no.. and put it away... but I dont and I actually enjoy her tight grip. She says "do you like this?? " And I say I do... as she starts to stroke it. I close my eyes and relax.. her small little fingers wrapped tight around my shaft. I'm in heaven.. then net thing I feel is wetness. I open my eyes and shes gone down on it... sucking on the tip. I say something like "holy shit!! " and she lets out a giggle but never breaks stride. She sucks and suck and sucks on me for at least 15 min... Finally.. I realize... I should be doing something other then just laying here... so in 1 quick move... I grab her by her hips and toss her up and over so her panties are right over my nose. She goes back to sucking.. and I start eating her out... First through her panties then i move them to the side. I swear I think she cum right away... she loved getting her pussy licked. I noticed the harder an deeper I licked her... the faster and rougher she sucked on me. Finally.. I was at a point that I knew I was about to blow if she kept sucking... so I again picked her up... tossed her around so her face was in front of mine.. an let her lay flat on my stomach. She was nothing but a huge smile, and wide open eyes. I reached down... pulled her panties to the side, and pushed her down my body until my cock met her pussy lips. I pushed a lil more.. until I felt her virgin pussy finally give up and let my cock head inside. Her eyes went from wide open to closed.. an her mouth opened and just a little noise came out. slowly I rocked her back an forth.. I could feel my cock going in a lil deeper with each push. She really had no idea how to act... she was tingling all over she said.. but even that was in a weak voice. After a few min.. I could feel I had reached the hymen. I was about to break it... turning this 12yo little girl into a woman. I lifted her way up.. so my cock almost fell out of her bald lil pussy... then i pushed down real hard. I felt my cock break thru and she reacted like she was shot in the back. I quickly looked for blood but there was none. So we continued. I still went slow... and could only get lil lover half my cock in her.. but still it was real nice. She was in some pain, but she told me it felt good too. I ended up pulling out and cumming on her ass that 1st time. We both showered together and she ended up sleeping in my bed with me. The next day we had sex 4 times.. including me waking her up by eating her out in bed. The last time we fucked that weekend was the best... by then there was almost no pain, I was close to balls deep and she had 3 huge orgasms. Since then we have fucked maybe 4 times, but I think she might be coming over here again this weekend as I've talked my buddy into taking his wife to a casino for the weekend.