"Just a little, okay?" Deidra looked at me."Sure," I shrugged. "You don't mind if I watch how much you add?" I guess that would be smart," said Beatri...e.She ended up mixing a quarter packet, a full one being about a reasonable dose when injected to get someone pretty stoned, in each of Deidra's and my lines and adding the rest to hers. Remarkably little to start with, divvying it out gave Deidra and I barely enough to fill a pin head. And yet we felt it going in. Beatrice was right about it. Tracey said she was failing a course that as far ashe had known no girl in the history of tis college had ever failed. With a feigned look of concern Miss Johnson asked Tracey what course could be giving her so much trouble. In a small voice Tracey squeaked Sex Ed.With a big smile Miss Johnson told Tracey that that had been her favorite subject and would do anyhting she could to help and asked waht was giving Tracey so much trouble. Tracey explained that her assignment was to find and report. Chetan and other guy lying down on the sofa. Two of them are sucking all over her body. Suddenly the guy fucking in her mouth starts cumming by pulling her head more deeper. His cum was dripping from her mouth. After that, he removed his dick and went away from there.Now, this is my life-changing moment. I can see her face clearly in the mirror. oh god, she was my sister. I got shocked. She was asking some other person to fuck her mouth. I loved my sister and never thought that she would be. "let me show you," i replied. i got upoff the couch and got on my knees facing niki. i ran both my handsover her upper thighs and worked my way down to her calves then toher feet and removed her high heels. i took one foot into my handsand proceeded to massage every inch of her feet. niki closed her eyes and softly moaned as i caressed between her toes. i raised her foot slowly to my mouth and stuck my tongue out to meet thesole of her foot and ran my tongue from heel to toe and slid my tongue.