I couldn’t argue with that.
“So why not just do it together?” Emily said, “No touching. Just, you know, together. It’s no different than if we went upstairs and closed our bedroom doors and did it. Which I’m telling you is what’s going to happen if we don’t right now.”
I certainly wasn’t going to argue with that. Emily took my silence to mean I was into it and started working herself with abandon. I’d heard that girls needed time to build, to touch and tease, and gradually work themselves into the mood.
Not my Emily. Before I’d even started stroking, she had two full fingers in her twat and was rubbing her clit so fast I could barely see it. We tested the soundproofing of the house that night, let me tell you. Emily screamed like she was getting stabbed when she came. A long loud “FFFFFFFFFUUUUUUUUUUUUCK!”
I wasn’t far behind — I grunted and my semen exploded upwards with a strength I’d never experienced. It splashed warm on my stomach. My legs. When I recovered I looked up and saw that I’d accidentally gotten some on my sister’s chest. Right on her boob — better than if I’d aimed it there.
She just laughed and scooped it up. Then she sucked my sperm off her fingers and I swear I almost came all over again.
“Not bad,” she said, “Kinda salty.”
We got dressed again and watched TV and eventually my parents called us for dinner. I knew it wasn’t over. But, as long as we weren’t touching, I figured we’d be fine.
*
We were fucking within a week.
Every day we’d break a new boundary. The next time we rubbed together — that same evening, right after dinner, if you can believe it — Emily insisted I cum all over her chest and face. Next she wanted to be the one to point my penis when it shot.
That broke the touching taboo. Soon she was stroking my dick while I worked her pussy. It took a couple of false starts — she gripped too hard, me not hard enough — but eventually we got really good at getting each other off. It reached the point where the few times I tried to do myself, I couldn’t even climax. My big sister had trained me to her touch.
After touching came tasting. Emily had sucked my sperm off her fingers (and her tits, and her hair) so of course I had to experience her own girl goo. It was kind of sweet and thick and I loved it so much I had to get some from the source.
So now we weren’t even bothering with hands. Just lips and tongues and even a bit of teeth. The first time my sister swallowed my load, I could have died right then and there.
And once your sister has your dick in her mouth while you’re licking her snatch, well, it’s pretty simple to spin around and jam your cock in her pussy. At least that’s what we discovered.
By that point Emily had figured out the way to get me to do things that I might not otherwise agree to. If she brought something up cold, like “I want you to fuck my titties.” I’d get nervous and say no. But if she started with something I’d already accepted and then stopped right before I blew my load she knew I’d say yes to almost anything.