Australia is one big place - if you live on a sheep station as I did when I was a kid, you would know what it's like. I held a pilots license before I had a drivers license! My sister and I grew up in the middle of nowhere.
We had a lovely house though. My folks had worked their asses off to make sure that we were well equipped, and lived in comfort despite the isolation. The farm had three light aircraft, and a couple of Robinson R22s for rounding up.
But growing up there WAS lonely.
I guess I discovered my dick the way most guys do, but it wasn't long before beating off didn't always get the job done to my satisfaction. I needed something else. Anna, my sister was two years older than me, and if I had it tough in that department, she sure as hell did. Oh, I knew she jilled off, and I even knew where and when. (For example, when the horses were in mating she would get so horny watching the stallions mount the mares that she would slip a hand between her legs and jill off, cumming as the stallion pulled out of the mare still shooting his load.
So, this one day ... my folks had gone into Alice, and Anna and I had the place to ourselves. We never hung out together that much, but today, Alice seemed to want my company.
We made ourselves a picnic lunch and wandered down to a pool dad had built for us. We slobbed out and at one point, Alice asked me to rub suncream into her shoulders. She was laying on her tummy and had unclipped her bikini top. I rubbed the cream in, and felt really wierd. It looked like gloops of cum on her skin, and yep, I got a stiffy.
Anna noticed, and said, looks like you need to do something about that. I colored up and mumbled something. By now I was almost straddling across her thighs and using both hands on her shoulders. I guess she felt my hard-on. Then she said 'Go for it. It's supposed to be good for my skin.' Well, this was my first time jacking off looking at a real live girl, even if it was my sister!
I shuffled back a bit and got my dick out. Anna responded by easing her bikini bottoms down to show me her creamy ass. I started jacking.
As I got close which seemed to take no time, I leaned forward, supporting myself on one hand. My dick slipped between her ass cheeks, although I was still jacking. I muttered 'Oh Anna, I'm gonna cum' At which she pushed back against me and I unloaded onto her ass.
When I had done, Anna flipped over and fingered herself off. I could see my cum on her.
After, well, that's not for here!
We jacked and jilled together a lot over the next year though.