My 18th Birthday Pt.2

About 3 years ago Mila showed me a beautiful place in the forest. It was a small clearing in the forest, there was a small Pond with some trees near it that looked like Weeping Willows but with budding flowers during most of the year, large portions of the forest floor here was covered in moss, making it comfortable to lay on. With how the sunlight shone through the tree tops the place looked like a Paradise, and for the last 3 years, it had been our paradise. We would take breaks from hunting here, or simply just hang out here and talk, snuggle, and after I turned 17 we would occasionally make out if the feelings came to us.

By the time I got there she had already laid out a blanket for us to lay on and was wrapped in a cloak, her clothes folded and put on top of her boots to the side of the blanket. I walked over and took off my new armor and cloak, setting them aside and moving to lay next to her on the blanket. Once I had laid down she moved to be half on top of me, her lips pressing against mine as we start to make out. I used one of my hands to pull the cloak off her body, my other hand moving to massage her large breasts. She breaks the kiss and moves her head down to start kissing my neck. I feel one of her hands reach down to grasp my now rock hard member and start to stoke it, causing me to let out soft moans. My hands roam her body, admiring the body that she worked so hard to achieve, her strength making me want to give in to her desires, to submit to her. She seemed to sense it as she moved fully on top of me, her kisses on my neck and collarbone turning into nips and soft bites. Her hand speeding up with a tighter grip on my cock, almost milking me.
After she seemed satisfied with the marks she left on my neck she pulled back and I saw pure lust and dominance in her eyes.
"I'm going to make you mine little brother, you may find some other girl out there somewhere, but none of them are going to be able to compare to me." She says with a growl, moving her hips over mine and moving my cock to press against her pussy. She rubbed the tip of my cock against her pussy for a moment before slowly sliding down onto my cock, the hard 10 inches hitting her cervix as im fully sheathed inside her. She shudders from the pleasure and stays still for a moment before she starts to rotate her hips slowly, enjoying the feeling of my cock stirring up her insides. Her pussy feels amazing, the amount of control she has over her lower muscles makes every motion feel like its trying to milk me. Once she starts riding me, my mind goes blank for a few seconds as pleasure hits me like a ton of bricks. She wasn't kidding when she said she would make me hers, if i didn't know any better I would think she was part succubus.
It didn't take her long to get me at the brink of orgasm, thankfully she seemed to be just as close.
"Cum with me brother, cum for your big sister." She said in a voice that oozed dominance, her lips meeting mine once more in a deep kiss, her tongue dominating my mouth. I can't hold back any longer as her pussy slams down on my cock, her own orgasm hitting just before mine, my cum shooting deep inside her, our moans combining in a noise so loud I wouldn't be surprised if our mother heard it from nearly a mile away.
We went another 3 rounds before we were both tired out. Afterwords we went over to the pond to clean ourselves off, making sure we weren't going home covered in cum and smelling of sex.

Freya's POV~

I know they often spend alone time in the forest, im not stupid, I have seen them snuggling in the place my husband had shown me many years earlier. Part of me is glad that its being used by somebody else, but it still stings a little. After they both left I didn't let myself wallow in sadness for more then a few minutes, I had to confirm something, so I followed them.
I was a few minutes behind them of course, and I did get a little lost since I hadn't been there in a while, but by the time I had gotten there I was shocked by what I saw. I quickly hid in the nature around me as I watched them go at it like newlyweds on a blanket. It definitely seemed like she was the one in the lead here, but that wasn't surprising, but the fact that they were just fucking each other without a care in the world. They were blood related siblings, but judging by the fact she keep referring to each other as brother and sister, the taboo of it is probably making it hotter... Is this the first time they have done it? I would guess it is since she seemed to imply this "Present" was special in some way, but the fact they are so willing to break this taboo is kinda... making me a little jealous... why is it making me jealous... why is this scene starting to make me Horny, it should be making me sick to my stomach but everything in my body is wanting me to go over and join them. I need to get out of here before I do something ill later regret.
As I get up to leave I hear them both orgasm at the same time... he just came deep into his own sister's pussy! She told him to do it! I can feel a ache in my pussy that tells me I desire the same thing, but I can't let myself do that, I am his Mother for gods sake. I start to make my way back home, quietly, hoping they never noticed I was here.
When I get home I can't resist and I masturbate to the memory of what I saw until I start to hear movement outside the house, telling me they have returned.
I should confront them about this.