She helped me setup the St. Andrew’s Cross, with all the buckles--leather and chains first. I had bolted two large two by sixes to the back wall close to my restraint table. I attached the cross to those anchors. She insisted on trying it out to make sure it was sturdy. I faced her towards me and attached both her wrists then her ankles to the shackles. Grinning--she wiggled and squirmed sexily testing the heavy supports I had anchored to the wall with six inch wood screws. I let her have her fun as I tested a leather riding crop lightly on her crotch--slapping her clit lightly to torment her. The tight spandex yoga leotard she wore was black and very thin. I used the crop to slap at her spread eagled inner thighs-making her moan in pleasure. “You wanna unbuckle my ankles and slide my yoga pants off Dano?” she said with a devilish grin. I was about to oblige her when Connie walked in carrying a gym bag. “Oh-- I’m soo sorry...am I interrupting ?” “ Sandra insisted on trying out the cross as our first customer Connie.” Connie smiled and stopped long enough to turn the dead bolt lock on the door so we wouldn’t be disturbed. Opening the gym bag she first took out a couple of red hair bands and secured hers and Sandra’s long black hair up high in a ponytail. Her ample boobs were rubbing against Sandra’s as she spoke. “In here -- I’m in charge...if I’m not here Donna is in charge..are you clear on that?” Sandra’s voice lustily answered she was happy with the arrangement. Connie then squatted to unshackle Sandra’s ankles and peel the skin tight leotard off. It was a tube type with no straps that she easily rolled to her ankles. As Connie stood--she removed her tight mini skirt and tee as well. I eased into the only place available--the leather covered restraint table to observe. Connie reached to the bag again and produced two adjustable nipple clamps. Sandra’s eyes went wide as she watched Connie attach them with just enough pressure to hold them onto her rock hard nipples. “They are set on the low setting to begin, but I’ll slowly turn the screws to see what your pain threshold is.” Connie frenched Sandra’s pouty mouth as she turned the screws slowly. Sandra moaned as her tongue danced with Connie’s. Connie backed off a foot and slowly slid onto her knees. She blew her warm breath onto Sandra’s erect clit, making her moan louder. Her labia had already flowered open and glistened with her juices. She hunched her hips lewdly trying for any sort of contact. Connie’s long tongue snaked between the folds to lick her slowly and circle her throbbing clit. I stood and walked three steps to tighten the nipple clamps another notch. Sandra came up on her tip toes as she moaned like a whore. I too frenched her as Connie attacked her helpless pussy. Her hands went around to cup Sandra’s ass cheeks and pull her onto her stiff tongue--impaling her. Sandra could take no more as she wailed-- “I-I’m gonna cum!!” Connie immediately ceased and stood as I backed away. Again she went into the bag and out came her “FeelDoe” double headed vibrating dildo. It was especially curved so two women could fuck each other with it. She slipped one end into her slick pussy and rubbed the other end up and down Sandra’s tormented sex. Finally she slipped a single inch inside Sandra and removed the nipple clamps. Sucking each nipple in turn--Connie fucked the dildo up into Sandra an inch at a time. The poor woman was going insane with pleasure it seemed, moaning and begging Connie to fuck her hard. This made Connie smile, and fuck her even slower. I lit a couple of red candles and dimmed the overhead lights to their lowest setting. The room seemed to transform into a darkly lit cavern. Connie asked me to unshackle Sandra’s ankles. As I did Connie hooked her elbow under the back of a knee and drove the dildo deeply into her soaked tunnel. Their nipples were crushed against each other as she hooked the other knee and slammed the remainder of the 8 inch dildo to grind their clits together. She had Sandra totally pinned against the cross and began to fuck her senseless.