. . . tied up

On the bed, I see my own sister tied up all around and see the ropes connected to the bed . . . shes butt naked, what a beautiful body

"Mom! What are you doing . ."

"You see Peter, I am sure you've put it together that recently me and Ruth have had intercourse every. . . single . . . night! At first, it started as a simple experiment, with the curiosity of what does it mean to be a Futanari and now we have become lovers!" she then goes and gets closer to the bed and towards the edge where my sister's feet are, "And this is where you come in sweetie, you see, we both realized that we wanted to add you into our love activities! It was gonna be beautiful, I wanted to come into your room last night when you were spying on us".

What!! They knew I was spying on them last night?

"I was gonna have so much fun! I wanted to have you for so long! " She then breaths in deep and exhales as she turns towards Ruth. "However this one convinced me that we needed to ask you first . . . because of your feelings, or whatever, and maybe you didn't want to do it with us, so we both came up with a plan, what we decided was to chat with you first as we would try to seduce you tonight" she then bends over slightly as she then slaps my sister's ass with all her might!

"I then come home, excited to take your first time and what do I see . . . you sister fucking you like a wild animal in the middle of the living room! As I walk in I see you pass out in a pool of your own cum", she then pulls the ball gag out of my sister's mouth, "So? Care to explain yourself? "

My sister gasps for air and says . . .

"Mama . . I am sorry . . . I couldn't wait! I didn't mean to . . .Hey what!!!" she then sees my mother lean and take a deep smell of my sister pussy, "Mmm! what a nice smell", she then process to start licking my sister pussy as she starts to twitch, "Ahhhh . . . uhh hah . . . PLeaaaase . . . stop . . . I beg you" I can see my sister as I see her touch her cunt brushing the tips of mom's fingers over her swollen pussy lips and gently caressing her clit. She squirmed at her touch. . . it looks like she's enjoying it. After a few licks, my sister stopped resisting and let Mother's face get buried in her cunt and I see 3 fingers deep inside her as she keeps licking.

"AHHHHHHH!" I then see my mother get all wet as my sister gushes liquid and sexual juices start to flow out, my cock is rock hard already, but it hurts so much, I cant get fully erect !!!

"I told you Peter, this will be your punishment as I punish her", did she read my mind?

"your . . . still going to . . ." I try to reply.

"We are just getting started aren't we?" she then pulls down her business skirt to reveal a huge bulge underneath her panties!

"Sorry Ruth, Mother needs to discipline you", she then pulls her panties to the side revealing her huge cock fully erect and being to stroke it, "As compensation, I am gonna mess around with your body a bit, and so YOUR punishment will help me calm down my hungry cock, is that a deal?"