I glanced up across Denise's flat belly, between her beautiful little breasts to her face. She was looking down at me, surprised, questioning. Then my wet tongue brushed lightly across her hooded clit and the first jolt of pleasure shot through her. Denise sighed, "Aaaaaaaah," and her head dropped back to the bed. Ruth scooted over beside Denise and began teasing the smaller woman's dark nipples with her fingertips. They were soon erect, begging to be sucked. But Ruth and I were on the same wavelength, intent on prolonging Denise's pleasure as long as we could. I licked up and down the small woman's pussy, tasting her delightful juices, exploring her warm, soft places, nuzzling into her sparse black pubes. Ruth caressed her small, round breasts, returning occasionally to tweak the succulent nipples. Denise, meanwhile, showed her enjoyment with deep sighs and occasional shudders as one of us found an especially sensitive spot. She opened her legs wide for me, crossing her ankles on my back, and reaching down to run her fingers through my hair. I enjoyed sucking her thin inner lips into my mouth, tugging gently as they slipped back out. I found her opening and slowly pressed one finger inside her wet channel. Her clit was swollen and warm when I finally returned to it, brushing it slowly back and forth with the tip of my tongue. She gasped when I began to focus on her little nub, flicking it faster and feeling the tension build in her leg and stomach muscles. Ruth leaned over and took one of Denise's nipples in her mouth, sucking gently, her cheeks hollowing for several long minutes. Then she switched to the other nipple and Denise uttered a deep moan and arched upward, her neglected nipple glistening wet and distended. I wrapped one arm firmly around Denise's thigh and added another finger to the one already sliding in and out of her slippery vagina. I felt her pussy clamp down, gently clasping my fingers, and continued flicking her clit with my tongue. "Don't stop!" Denise gasped urgently. "Please! Oh, Ruth! Yes! That feels ... please ... oh suck me! Oh, oh! Please! My pussy! Yes! Eat me, baby! Eat my PUSSY! Lick me! LICK me! Continuing my slow finger-fucking, I began to concentrate more on her clit, flicking my tongue rapidly back and forth. Denise's climax took longer to build than Ruth's. Finally her stomach muscles tensed and her hips tilted up and she fell silent, holding her breath. I knew she was terribly close, so I concentrated on flicking her hooded clit, steadily, lightly and quickly. Then she burst! GgggggaaaaaaaaAAAAAAAAGGGGGHHHHHHH!!! she cried loudly. "Oh, FUCK! Oh, YES! Oh, GOD! Ohmygod! Ohmygod! OHMYGOD!!! Denise's slender, muscular body convulsed again and again, hips thrusting, legs levering her lower body upward. I shoved my fingers deeply into her pussy, pulled them out and shoved them in again, stretching her opening. She grabbed Ruth's head with both hands and pulled her up for a deep, desperate kiss, eagerly returned. Ruth crushed her lips against Denise's, their tongues tangling. I was still licking her clit and she was still coming. "Mmmmf! Mmmmuugh! Mmmmf!" Ruth's kiss muffled Denise's cries, and the smaller woman's hips bobbed as she pushed them up again and again to meet my hungry tongue. Gradually, though, her hips began thrusting less and her legs fell limply across my back. Ruth broke their kiss and eagerly returned to suckling Denise's breasts, switching from one to the other. Then Denise's hands were pushing my head away from her crotch, her clit sensitive. I began licking up and down her slit, avoiding the swollen clit, sucking lightly at her thick outer lips. Above me I could hear her whispering. "Please stop. Please stop. Please. I can't take any more." I lifted my mouth from her beautiful pussy, widespread, glistening wet and swollen, the hood over her clit a dark, rich pink. Slowly I let my fingers slide out of her vagina, feeling one last squeeze of her pussy muscles. Ruth's head was pillowed on Denise's chest, facing her. I reached out and caressed the lovely curve of her hip. Then I moved up beside Denise and wrapped them both in my arms. Denise's eyes were closed, her face slack, her lips occasionally whispering. Ruth glanced at me and grinned. She ran a finger over my lips, collecting Denise's juices, then sucked them off her finger. "YOU are turning into a sex fiend," I whispered, smiling. "It's all YOUR fault," she retorted, "I was a nice girl before I met you!" I could only laugh, because she was right. I had never seen anyone so prudish abandon her inhibitions so quickly and thoroughly. I was glad she had made some kind of breakthrough. The "slave" charade was fun for awhile, I reflected, but could wind up being a pain in the ass.