was when I started watching Em and Becky. It was no shock to me to see that both of them were getting aroused by what they were seeing. What did surprise me was when Becky didn't have any objection to Em reaching over to begin playing with one of her breasts… and reciprocated by moving one of her hands to cover Em's mons. I pretty much knew that the two of them had done things with each other, so it was only the fact that they were getting involved with each other right there in front of me that was a surprise. Another sex scene, and there was no mistaking that Emma was deliberately teasing Becky's nipple to hardness while Becky's hand was blatantly toying with Em's clitoris-and dipping farther down Em's cleft to keep the end of her finger lubricated. It wasn't a whole longer before the two of them were exchanging intermittent kisses that gradually got longer and more involved; from there, not much more time passed until it was clear that they'd completely forgotten about watching the movie in favor of paying attention to what they were doing to each other: each had one hand on the other's breast and the other busy between her friend's thighs.
I'd never actually seen two females together before, and the sight of Emma and Becky so unabashedly making out and getting each other worked up went straight to my dick, which grew in time with their obviously increasing arousal. The scent of aroused female was thick in the air and I was at full extension when Becky sat up long enough to reverse direction, then move to her hands and knees over Em. A few moments more, and the two of them were locked in a '69'. From where I was seated, I had a clear view of Emma's tongue investigating the delicate folds of her friend's pussy: Becky's labia were a little longer and thicker than Emma's, but I could see that they were easily just as soft. At the top of her cleft, Becky's slightly large clitoris was starting to make an appearance out from under it's flesh cloak; at the bottom, her labia were already shiny with a mixture of Em's saliva and her own juices… I knew that because I could easily make out the ring of her opening, and the drops of her nectar that had escaped.
It took conscious effort to remember to breathe as I watched my naked niece and her equally naked best friend proceed to arouse and pleasure each other in front of me. The sight and sounds and smell as they happily licked and sucked and generally bedeviled each other's pussies is something that I'll never forget, and always treasure. I don't really know how long the two of them kept after each other, but there was no mistaking the fact that they gave each other a number of small orgasms along the way. It was after Emma had brought Becky to another climax that she gently pushed pushed her lover off of her; when she looked around, she saw me sitting on the couch with a raging hard-on. She didn't appear the least bit embarrassed by what she'd just been doing with her friend when she told me 'Uncle Dave… would you mind getting down here with us? Please? I need to feel something inside me!'
Concerned about doing anything with Em while her friend was present, I looked at Becky. She was looking at me, and didn't seem any more bothered by what I'd witnessed her doing than Em had as she told me 'I already know you've been with her, Mister Harrison, so I don't mind if she wants you to have sex with her.'
Right on the heels of that, Em suggested 'Uncle Dave, why don't you use your mouth on her? That way she doesn't have to just sit on the side and feel left out?'
With all of my blood in my dick, my brain was oxygen-starved enough to think that was actually a good idea, and I agreed. It took only a few moments for me to get stretched out on the floor, where Becky quickly got herself positioned straddling my head so that she was facing my feet. From there, she leaned over far enough to surprise me by taking my erect cock in her mouth. As I felt her tongue go to work on my shaft, Em told me 'Don't worry, Uncle Dave. She wanted to find out for herself that a guy's penis doesn't actually taste like anything; she'll stop in a minute after she gets you wet so it's easier for me to get you inside.'
Oh. Well, okay, then. As promised, Becky did stop after licking my dick and sliding her lips up and down on it for several seconds; when she let me slip from her mouth, there was indeed a film of her saliva on it as she sat up. That left me looking up at her smooth, tight buns as I felt Em straddle my hips. A moment later, Em's hand tilted my cock up and I felt her get the tight ring of her womanhood pressing against the end of it. As she started to settle herself onto my shaft, I heard her soft moan of pleasure accompanied by Becky's soft gasp as she watched my manhood disappear into Em's warm, wet sheath. After Emma's firm ass settled onto the tops of my thighs, a few seconds passed before Becky moved to reverse the direction she was facing-giving me a view I could only have hoped for: the smooth expanse of her bare mons, with the mounds of her breasts extending out from her chest as a background.
When I moved my gaze to her face, I could see that Becky was looking down at me in eager anticipation… all I needed to remind me why she was so conveniently positioned over my face. Bringing my hands up, I cupped the globes of her lovely ass as I raised my head to tend to the hairless treasure she was offering me.
I'll never know if she did it deliberately, but my first taste of Becky's fifteen-year-old pussy coincided with Em lifting herself up until only the head of my dick was inside her; the second pass of my tongue along Becky's cleft was accompanied by Em letting herself slide back down onto my hard shaft. As Em proceeded to get herself into a nice rhythm of self-impalement on my manhood, I had the pleasure of bringing Becky back to the level of excitement she'd been at with Em… something that didn't take long. Then it was on to see if I could get her even more aroused. As it happened, I could-particularly after I released my hold on her incredibly firm ass in favor of reaching up to take her breasts in my hands. The things I did with her lovely young mammaries were enough to increase the flow of oils that escaped her girl-chamber; I happily lapped them up, delighted by their tangy sweetness.
I neither know, nor care, how long we continued like that except to wish that it had gone on longer: Emma bouncing herself up and down on my hard cock while I had a mouth full of Becky's tasty pussy and my hands full of her warm, firm tits.
We continued like that until I heard/felt Emma press herself down on me with the start of an orgasm; the feeling of her pussy around my dick was enough to shift me from enjoying her attentions to wanting to give her some attention of my own. Wanting to be able to devote all my attention to Em while we fucked, I focused on what I was doing to and with Becky so that I could bring her to a climax first. I'd mostly been just idling along, having fun gathering her nectar between bouts of stimulating her into producing more of it; but with the desire to fuck Emma, I dedicated myself to pleasuring the young girl straddling my face… and doing it in a way that I knew she'd never forget. With that resolved, I went about using everything I'd ever learned about eating pussy on Becky. It didn't take but a few minutes to have her well beyond the level of arousal I'd already raised her to, and have her gasping and moaning between the unintelligible noises she started to make.
When Emma started moving herself on me again, I could tell that she was getting tired, but I still took Becky to the edge of release before letting her fall back again-only to start moving toward an orgasm again, slowly and deliberately so that her release would be as strong and powerful as I could make it. I know I was able to hold her on the ragged edge for a few seconds, teasing her, until a firm press of my tongue against her clitoris resulted in her almost convulsing with the power of the orgasm she fell into. I'm sure that it was only because I had my arms along her sides and my hands on her breasts that she was able to remain vertical as a series of intense spasms coursed through her young body; when they finally faded, it was all I could do to keep her from falling over. I somehow managed to support her long enough for her to get herself together enough to cooperate as I carefully and gently guided her onto her side next to me. She was clearly stunned by what she'd just gone through, and could only nod when I told her 'If you'll be okay, I think I need to help Em finish, okay?'
When I turned my attention to my niece, I saw that she'd witnessed what had happened, and heard what I'd told Becky: seeing that I was ready to devote myself to pleasing HER, she ended her activities by slowly lifting herself off my shaft and moving to sit on the floor. When I sat up, she let me know how she wanted us to continue by laying back and spreading her legs. I moved between them and took a few moments to enjoy the sight of her before getting myself positioned over her. She brought her legs up and locked her ankles behind me, tilting her pelvis up and opening herself to make it an easy matter for me to get the head of my penis against her opening. All it took was a steady push of my hips for me to bury my hard shaft in her in a single slow stroke as she softly moaned her pleasure. From there, it was less than a minute until I was steadily pistoning myself in and out of her to our mutual pleasure.
Over the next several minutes, my strokes in and out of Emma's tight, wet pussy steadily increased, arousing both of us: Emma was able to remain still and enjoy the feeling of my hard cock moving in her, while I was able to find a pace that I found pleasurable. When I finally felt the indications that she was getting close, it was fine with me because I was, too. A couple more minutes, and she tightened around me as I tried to bury as much of my dick in her as I could just ahead of the first spray of semen erupting from me. The start of my climax was apparently all she needed to trigger her own release, because I felt her insides start the milking sensation that signalled she was having her orgasm.
