It was a few more months before Mistress Andrea let me perform oral sex on one of her female slaves. When it was time for the special training session... slave M was standing next to her. She commanded, "Slave M will take care of your training tonight, slave B." I didn't mind at all. I don't know if Mistress knew, but I was partial to slave M. Slave M led me into the classroom, and commanded, "Lock yourself in the first desk."The first student desk had been pushed up against the teacher's desk. I. His cock finds her lips and traces around them leaving a trail of precum. He pulls back and she licks it off before he is at her mouth again. She opens up and feels him push halfway in as his hand grasps hers and places it around the shaft. Even blind she expertly sucks him taking as much of his 8 inches as she can in her mouth while her hand strokes his shaft and squeezes his ballsAs she sucks him, she feels something pressing against her pussy entrance. She moans as it fills her, momentarily. A small gurgling moan emerged from her throat which I took to be encouragement. Next I removed her right boot replacing the cuffon her bare ankle. She'd tried to resist of course but with her knee still tied she wasn't able to stop me. Slowly I ran my tongue over the sole of her foot feeling relieved that she'd showered that morning. The gargle had become a muffled scream by the time I startedsucking on her big toe. She moaned, thrust her little mound in the air and wiggled, begging, pleading. I could see the gloss red colorof my toenails shining through the reinforced toes of the nylon hosethanks to a full pedicure which matched the manicure she also put methrough! After attaching the stocking to the garters of the sturdypanty girdle she began with the other stocking. I felt myself startto whimper as she worked, feminizing me. "Don't you start cryingsissy or you'll really be in for it. What's the matter sissy!? Thisis what you were doing when I caught you wasn't it? Putting on.