Well needless to say I was very preoccupied the rest of the day and night. Just the thought of my sisters sweet little bottom already turned me on, but to have actually licked it was heaven. It was business as normal though for Sis and me for the next couple of days. Mom was getting home from work on time and dad soon followed. We were also in school so time alone was hard to find. Every night though I fantasized about my Sister and our little game usually ending in a quick jack off session that left me more frustrated than anything. Thankfully an opportunity arose on Friday. During breakfast mom told us all that she was grocery shopping after work. When we got home I would have to watch my Sister and little brother until she or dad got home in the evening. I knew from experience that meant about 2 hours of fun time that afternoon. Sis’s eyes and mine met across the table at the news and she smiled a bit at me and I smiled back. My thoughts were racing now because she seemed to have the same thing in mind as me! The whole day at school I was distracted, visions of last weeks adventure ran through my head and ideas for tonight were growing. Finally the last bell for the day rang and I walked rapidly through the halls to the bus, eager to get home. The ride seemed to take forever but finally I was let off on the corner and walked the remaining 3 blocks home. Sis had arrived 30 minutes earlier, she being 4 grades lower than me she started earlier and ended school earlier. The afternoon rules for us were that if mom hadn’t made it home we were to stay in and do homework and chores followed by our afternoon TV programs. I was anticipating getting home so much! I wondered if I was going have to ask Sis if she wanted a massage today or even if she had changed her mind since this morning. Luckily I was surprised, when I came in the house she had already changed in to her little shorts I loved so much and was doing her homework at the kitchen table. Next to her was my younger brother Jake doing his homework as well. Jake was in on the game me and Sis played but didn’t know how far it had gone last time. He also had been part of some our more adventurous games in the past. “Hi Sis!” I said, “Want a massage?”. Sis stopped what she was doing and looked over at me. “Yes please Danny, I would like that.” Excitement filled her voice. She rose from the table and laid on the floor. “I will go get the oil.” I said and went back to the hall closet and got the baby oil from the lower shelf. When I came back out the hallway Sis had quite a surprise for me. She had forgone the usual “coyness” of keeping her shirt down and legs together as she lay on the floor like usual. Instead she had already taken her shirt off exposing her little training bra. Her shorts were still on but she had spread her legs. Jake was still at the kitchen table but clearly he was watching what Sis was up too, I don’t think he even thought she would be so forward with both of us in the room. “Do my legs first Danny” she said “Just like last time…” I caught the slight mewl in her last words it really turned me on. I positioned myself behind her on my knees and carefully poured a small amount of oil in to my left palm. Placing the oil bottle next to me I then rubbed my hands together a bit and began down by her ankles rubbing up toward her soft sweet crotch. As I peered up her legs to her bottom I was caught off guard by another surprise of hers. She had no panties on! The sight was tremendous and exciting! Her hairless slit was visible, and a hint of her sweet little asshole was showing. I took the hint and rubbed all the way up her leg and pushed my hands up under her little shorts. I brushed her slit with my hand and brought both hands down her legs again. “Mmm, Like that” Sis said “just like that.” Honestly my cock was rock hard at this point straining hard against my blue jeans. I could not believe I was doing this. “Jake” she said, “come to my other leg for me please.” I was in heaven! Jake, Sis and I had messed around before like this. I would massage one leg and he the other then one of us would do her back while the other stayed with her legs. I guess she really liked it, she never complained but it was a rare occurrence. Jake joined us on the floor and I straddled her left leg while he straddled the right and after pouring a bit of oil on her we both were rubbing up and down her legs pushing all the way to her crotch and back. Sis relaxed a bit more giving no sign of stopping our explorations. Jake and I just looked at each other and grinned. That’s when I decided to move to her back and let Jake continue with the legs. I got up and positioned myself on my knees just above her head. I poured a bit of oil on her lower back and I leaned over her pushing from just below her bra to her waist and back up again. Sis cooed “MMMM” but nothing more. So I began the “push” and on each downward stroke I pushed her shorts over her sweet bottom. Again there was no protest from Sis, so I continued with the slow undressing of her sweet white bottom. Jake was still rubbing up and down her legs doing one then the other. After about 10 downward runs of my hands her shorts were bunched just below her round bottom exposing the sweet separation of her buttocks. “Danny, do that thing like last time” she said. Well needless to say I was beyond words at this point. I mumbled something like “ok Sis” (All I was seeing was a sweet ass at this point) and I moved back over to beside her and told Jake to take my spot doing her back. Jake was in the same state of shock I was, but was happy to comply and moved my old spot and I positioned myself between her spread legs. Jake began to rub and as he did Sis pushed her bare bottom up into the air. Head down and bottom in the air I feasted on the sweet sight of her bare pussy and sweet bottom. I reached up and pulled her shorts to her knees and poured a small amount of oil onto her bare buttocks. I then began to massage the oil into her bottom, first on the sides along her hips then moving to the globes of her little bottom. I began to play a bit then by spreading her ass a bit and moving my massage more toward her ass hole with each rotation of my hands. “No, with your mouth too!” Sis sort of cried. I leaned in with my face now and took my time. Starting at the ass edge of her pussy I ran my tongue up her sweet little rosebud then up the rest of her crack to her lower back. “Mmmmm” Sis moaned “Again!” Jake had stopped massaging at this point. I think he was dumbfounded as I was. I went back down starting at the edge of her pussy and sliding my tongue upward, this time though I stopped and poked with my tongue into her little butt hole. I swear I was lost! The aroma, the taste, the very intensity of the situation had me charged all over. I moved my head again for another pass but this time I went lower and ever so gingerly started at about what I thought was the middle of her pussy and ran my tongue over it, just on the outside of the folds and then upward again stopping and probing her little butt hole a bit then upward between the globes of her ass. Sis just moaned! Jake at this point had just sat back on his haunches taking it all in. As I got the top of her buttocks I could see him just staring. I motioned him to come around and I moved over. He just nodded quietly, in shock I guess at being able to do this thing we had only read about in magazines. But he rose to the occasion and bent down licking Sis as I had. I was beside Sis at this point and my boner was killing me! As I watched Jake lick Sis I undid my pants and scooted out of them and sat on the floor in my underwear. I was on my bottom leaning back on my hands with my legs bent up and apart, my hard on pushing outward on my underwear. I had a wet spot were the head of my cock had been drooling with pre-cum from the excitement. Sis had opened her eyes when me and Jake switched positions but had not complained about the swap. She had watched me lose my pants and now with her left arm reached over and reaching between my legs patted the bulge in my underwear. “Wow” she said “What’s that?” and she smiled. She knew what it was! Little tease that she was she had played with us a quite a few times in the nude before. I parted the slit in the underwear and let my hardon out. Sis grasped the shaft and stroked it with one hand as best she could considering her position. I leaned back on my hands and let her stroke it. It felt so good! I looked over at Jake, taking in the sight of Sis with her ass in the air, shorts around her knees and Jake poking his head between her sweet thighs. This just heightened my arousal especially with Sis roughly jerking me off. I didn’t last a second after seeing this and my cock pulsed and jerked! My first spurt of cum shot out and landed on Sis’s arm and bit on the carpet. The rest just pumped out over her hand covering it a bit in long gooey strands. I could tell by the look in her eyes that Sis hadn’t expected me to cum, we had only had that happen a few times in our games before. But she didn’t move or jump up all crazy like she sometimes did when she got nervous. I guess she was just as turned on as Jake and I were. She just stopped jerking and me and pulled her hand away. “I need a towel…” I did not let her finish her sentence and jumped up to get a towel from the kitchen I wasn’t going to let her get perturbed at me now! Jake looked up from between her buttocks when I got up and looked at me and said “Can I too Sis?” Sis made a kind of funny face but I guess she figured that she had to at this point. So while I went to the kitchen Jake got up and zipped down his pants and pulled out his cock, stiff as a board for Sis’s ministrations. I returned with a kitchen towel and cleaned Sis’s arm and hands and tried to dab up what cum that had hit the carpet. Jake then positioned himself as I had done. Then Sis took his cock and began the same up and down motion as she had used on me. I just stood there, in wet cum stained underwear, watching as Sis stroked off my brother. I could feel my cock stirring again already! It was slowly hardening up. Sis was still in her modified doggy position and I could see her beautiful pussy and ass still slick from oil and our saliva. Oh what a sight, only in my dreams I had feared! Jake’s head flipped back and he pushed his hips into Sis’s hands as she jerked him. He was out of it! Soon he pushed one final time with his hips and cum leapt from his cock. This Sis took it in the face, a large globe landed on her cheek as the rest of Jakes cum pulsed out over her hand. “Ick!” She exclaimed. I was instantly leaning over with the towel to wipe it off. I did not want to spoil our newfound progress with Sis. She was finicky, and sometimes would just stop and walk away if she felt funny about it. “Thanks, Danny” she smiled. Mentally I breathed a sigh of relief, it looked like Sis was having fun and we were doing it “right” with her. Jake pulled back now and I knelt down and cleaned Sis’s hand. “Oh that was fun!” Sis said as she relaxed her body and rolled over onto her back and pulled up her blue shorts. “What time is it?” She asked suddenly getting a worried tone in her voice. I freaked out! I had lost all track of time. Looking around to the kitchen clock we all kind of breathed a sigh of relief. It was 4:30, Mom would be home around 5. That was great! We could all get back to our chores and homework pretending nothing had been going on.