The dildo was about 9 inches long, and was about 1 1/2" around. But that is not what made it so menacing. The size of the dildo wasn't as large as som...e of the things I had taken inside me lately. What made it so menacing were the pointed rubber studs along its entire length. "Master, that will rip me apart!", I protested. "Nonsense", said Master. "The studs will be very uncomfortable, but they will not break the skin, internally. I would advise you to not flex your ass muscles too much,. The moan turned into a shriek as Tegan stepped up behind her. Tegan’s own cock was nestled between her legs, her cunt lubing up for what was about to happen. Tegan grabbed at her breasts, squeezing Sara’s rock hard nipples. ‘It’s been a long time since we’ve done this…’ ‘Fuck me you slut.’ Sara moaned back like Tegan needed an invitation. Her diamond hard member slunk into her sister’s sex, joining the growing chain of sexual deviants. ‘God you’re tight.’ Tegan moaned out as she started. "I think you'd better go now Kylie" I was hoping you could give me a lift home sir" she leaned down and put her mouth close to my ear, "After all my parents are away and your wife's away, you could give me some extra tuition" I looked into her big blue eyes and my prick jerked,"If you asked me nicely sir" she breathed, "I might be persuaded to take my panties off, or even better sir, I might let you take them off" Perhaps I could borrow a pair of your daughter's panties sir, you know, those. ’ As she pressed into me I could hear her low moan of pleasure in my left ear. Her position was perfect, I couldn’t even withdraw from the pressure of her hands because she had trapped my body between her pelvis behind me and her hands working in front of me. I was captured by her with my fingers locked together behind my head in submission. She would push down trying to express from me then bring her hand down across my sloppy wet pussy and draw back up with only the lightest finger pressure..