All characters engaged in sexual acts are over 18.
*****
After the first two days in which my sister and I seemed destined to fuck every few hours, nothing much happened on the third day. The TV news had told of two of our soldiers killed in Afghanistan. She didn't know them, but sipping beers outside that evening, Tanya said to me: "I think I get it now. I mean us, and what we're doing. You were right, what I've been through entitles me... No, what
we
all went through over there, and every other poor sod going to every other place people go and die, entitles
us
to grasp life any way we god-damned please."
She caught my serious look, then as she always did, Tanya managed to make it a joke at my expense: "In my admittedly extreme case I grasped at life by grasping your cock. And you're still fucked for an excuse, squirt."
She laughed loudly, I couldn't help but join in. "I don't need an excuse," I told her, "I have a hardon for my sister. That's it, in a nutshell."
"Oooh, you got one right now?"
"Um, almost!"
"Let me know when you get a proper one. I don't want to waste my time."
I leapt over and tickled her. She tried to fend me off but I had many years of experience knowing her weakest spots. In the end she fell off her sunchair, we wrestled and rolled about, stood and wrestled some more. Her 'escape and evade' training kicked in and she managed to wrestle me to the side of the pool. At the last instant, I used my body weight to pull her in with me.
Laughing and spluttering, we came to the surface together. We were in summer clothes. Tanya's sundress wafted around in the water, I saw her pink panties underneath it.
She swished over to me and pinned me against the side. She had some trouble pulling the wet drawstring of my shorts but when she had, she pushed them down and off.
"Looks like I have to do everything myself. I have to undress you, I have to get you hard. I suppose I'm gonna have to do all the work?"
"Absolutely. All of it!"
"Hmm. Can you at least get out of the pool yourself?"
"Oh, I'll try. Will I need my shorts?"
"No."
I hopped out and sat on the edge. Tanya did the same. She pretended to be bored, sighing: "Oh for heaven's sake, you're not even trying. That's not hard enough! Get on the sunbed."
I lay down with one elbow behind my head, grinning. Tanya bunched up towels and knelt on them beside me. She took my half-hard cock in her hand, flopped it side to side, then frowned at me. She bent her head, as I knew she would, and popped it in her mouth. She sucked gently, wetly, and soon my erection was complete.
She said: "If you were any kind of gentleman, you wouldn't make me do this."
I replied: "If you were any kind of lady, you wouldn't talk with your mouth full."
She smiled and play-bit my knob. I flinched, but immediately she went back to sucking. When she was happy with her work she stood, straddled the sunbed and pulled the crotch of her panties aside then lowered herself on my cock.
"And there we have it, you lazy prick. I undress you, I get you hard, I even have to do the fucking for you."
"Oh, you don't
have