That night Steve, Helen and Karen hear a voice outside the cave that says " We know your whore mother is in there with you, give us your sister and your mother and you can join us, were not mad at you Steve, we know why your protecting them but if you give us your mom and sister you can finally stop fighting and have all the food and women you could ever want ". Steve says " No!!! I know happens at the village and I want no part of it " and he spends the whole night fighting off intruders while Helen hugs her terryfied mother.
The attacks finally stop and Steve explains to his mother that because the entrance of the cave is so narrow only one person at a time could get through wich easily allows him to beat back any and all intuders. Obviously because their mother is living with them Steve can't fuck his sister Helen anymore and after a month Helen can see the negative side effects of her brothers sexual frustration, he isn't happy, he doesn't smile or laugh anymore. Helen whispers in Steves ear that if they could get some time alone together that she wants him to fuck her brains out wich brings a smile to Steves face but Karen follows them everywhere the go.
Steve still does everything he needs to do, bringing food and water to the cave, starting fires in the cave to keep them warm, bringing them to the pond so they can wash up while he stands guard. Helen teases her brother by flashing him her labia and anus when their mother isn't looking and giggles when Steve tries to hide his erections from his mother, that night the voice outside the cave says " Steve how long has it been since a woman sucked your cock? or you fucked a woman? if you give us your mom and sister you can have all the women you want " again Steve says " No, go to hell " and he fights off all the intruders all night until the attacks stop.
After the attacks stop and Helen goes to sleep karen walks up to her son and says " Thank you so much for protecting us Steve and for everything that you do for us and I know that it's been so hard for you, the man outside the cave is right how long has it been since you've been with a woman? " Steve says " I don't care about that, all that matters is that I protect you and her ". Karen says " You can tell me the truth Steve, I've seen the erections you get everytime you look at your sister, I told you all the things that could happen to your sister and me if we were taken back to the village and I will not let that happen to her, I'll do anything to make sure that it doesn't happen ".
She grabs her sons cock and says " Use my body Steve, I want you you to fuck me and get rid off all your sexual frustration " and she gets on her knees and keeps jerking his cock until it becomes rock hard and she takes it in her mouth and starts sucking it " Steve says " No, stop, we can't do this " she spits his cock out and says " If this is what it takes to make you happy then it has to happen " and she starts sucking his cock again. It's been so long since Steve fucked his sister and he really does need to fuck so he gets his mother in doggystyle position and he rams every inch of his rock hard pulsing cock deep inside her cunt and grabing her shoulders he fucks her harder, fast and deep. She starts to moan but covers her mouth so she doesn't wake up her daughter, he grunts as he fucks her cunt hard until his body stiffens and Karen says " It's ok Steve I can't get pregnant so cum inside me " and Steve covers his mouth and moans as he shoots loads and loads of cum into his mothers pussy, pulling his cock out he watches as his sperm leaks out of her cunt.
Steve fucks his mother everynight for a month and Helen notices the differece, he always happy now, smiling and laughing giving both her and her mother hugs and Helen knows the only possible explanation for this is that Steve has been fucking their mom. While Steve is out gathering food and water Helen says " Mom I know what you and Steve have been doing I know he's fucking you " Karen says " What are you talking about? I would never allow that " Helen says " It's okay mom I understand because before you came here Steve was fucking me too, he was so sad and tired of fighting so I let him fuck me and we were happy " Karen looks at her daughter and says " I can't be mad at either of you because I did it for the same reason, it's like I told him I never want what happened to me in the village to happen to you ". They hug eachother crying and Helen says " When Steve comes back lets give him a day he'll never forget ".
Steve comes back and places the food and water in the cave and his mother and sister give him a big hug Steve says " What's this for? " they both get on their knees infront of him and Helen starts playing with his limp cock while his mother fondles his balls and grabs his ass Steve says " What are you doing? " and Karen says " I know about you and your sister and she knows about you and me so we decided to make it a family affair ". Steves cock becomes rock hard and both his sister and mother lick it and eachone takes turns sucking it and while Helen sucks his cock Karen sucks his balls, a sexual rage takes over Steve and he places his mother on her back on the floor and then he places his sister over his mother so that bother their vaginas are exposed to him.
He sticks his rock hard cock inside his sister then pulls it out and sticks it in his mother, repeating this again and again he fucks the both of them hard, fast and deep until he cums deep insidide his mothers pussy. He pulls his cock out of his mothers cunt and Helen starts to lick the sperm as it leaks out of her mothers pussy with Steve watching and he says " That's amazing ". His mother and sister look at Steve and his mother says " Was that good for you? are you happy? " Steve still in shock from watching his sister drink his sperm from his mothers pussy says " That was awsome ".
They fuck eachother like this for a month and Steve is the happiest man in the world, he watches as his sister drinks his sperm out of his mothers pussy and watches as his mother drinks his sperm out of his sisters ass. When Steve isn't fucking them he watches as his mother and sister have sex with eachother, he watches as they start by making out and then kiss and touch eachothers bodies. He watches as they get into 69 position and eat eachothers pussies and bring eachother to orgasm before joining in and fucking them both very, very hard and then sits back and watches as one drinks his sperm from the other.
The side effects of this are obvious Steve is extremely happy and he does everything with a smile on his face and when he fights off intruders his strength is incredible. Steve is always very careful not to cum inside his sisters pussy so he always cums in her ass or his mothers pussy or in both their mouths wich they both swallow every drop. When he's not fucking them and their not fucking eachother they both preform felatio on him until he cums and they both milk his cock until he can't cum anymore, Steve thinks to himself if there is a heaven then this is it.