You experiment with your mom's body and the rapier, testing its limits on her old body. After a good fifteen minutes you grow bored, and decide to see what your mother and sister are up to. You walk down the hall to her room, where presumably your mom is trying out new outfits. You are about to open the door when you hear your mom say something in a conflicted tone of voice "No! It isn't right, I'm your mother!"
You hear your sister retaliate in a pleading tone "About ten percent of you! You're ninety percent me right now, it'll be just like masturbation!"
Your mother doesn't respond for a long time. She finally responds "If you are sure you want me to do this, then I will. If you have and doubts at any point just hum loudly and I'll stop, okay?"
"Trust me, I want this. I am begging you to let me do this."
You crack open the door just wide enough to see the two of them and nearly shout in shock at the sight of them, but throw your hand in front of your mouth just in time. Your mother is sitting on the edge of Emily's bed, holding your sisters head in her outstretched arms. She is entirely naked, her firm round butt in full view of you. She then pulls your sisters sexy face to hers and begins passionately making out! They lock lips and twist tongues vigorously, each moan louder than the last. Despite being your relatives you are now hard as diamond, and it only gets harder when your mother pulls Emily's head away. "READY?!" She screams animalistically.
"DO IT!" Was Emily's equally desperate response. With that, she took a hold of Emily's head with both hands and plunged her into her own vag. She kicked with ecstacy as your sister went to town, her tongue working her like a well lubricated machine. You watch and pant as the two go at it, but after a few minutes you see problems. Your mother is beet red and almost slobbering, but looks almost in pain. She eventually pulls your sisters head away and lifts it to eye level. "Did I not please you mom?"
Your mother sighed "You where great kid... really, but... I don't know. Maybe it's because my body hasn't seen action in a while and is more sensitive but... I just can't climax." She paused, lying on her back and placing your sisters head between her boobs so she could look her in the eye. "I think I need a dick in me. Do you have a dildo?"
Emily sighed "No, I left it at my friend Sandra's house."
Your mother goes wide eyed. "Why would you..."
Your sister giggles innocently "I was just curious. It was three months ago. Plus, nothing happened. She turned me down and I accidentally left it in her basement, and no one goes down there." Your mom nods understandingly, before your sister continues "Do you have one?"
Your mother sighs "It broke last night and I threw it in the trash. I was going to get a new one today, but I got side tracked. So, now I'm all hot and bothered and we don't have a dildo in the house."
Your sisters eyes brighten and a mischievous grin spreads across her face. "Well, we have... One..."
They look at each other for a moment before your mother gets the idea. You realize then what your sister means, they plan on taking your penis and using it as their toy! While what you just witnessed was undoubtedly hot, and you feel bad for both your mom and possibly Bi sister, you also realize that this is still wrong, and you don't know how much you can trust them with the rapier if this is how they act after only twenty minutes. What a conundrum, but you must act fast! You...