Headmistress' Favorite Sport

This time her objections were met with a severe whipping from Rachel, who didn't stop until Susanna was screaming and crying, begging her to stop. "Never speak unless ordered to, slave." Rachel told her sister. Then she stepped closer and grabbed Susanna's hair, drew her close and kissed deeply and passionately. Susanna tried to draw away but Rachel held her too tight. Rachel dropped the riding crop she had held in the other hand and assaulted Susanna's pussy. It had been years since Susanna had had a lover and Rachel knew all the tricks. In seconds Susanna found herself responding against her will. Her juices began to flow and suddenly she found herself responding to the kisses. She knew it was wrong but she couldn't help it. Her sister was too strong, too knowledgeable and soon Susanna felt a fantastic orgasm approaching. She forgot all her objections as she screamed and thrashed as the orgasm ripped through her. But Rachel didn't let her rest. She kept up her manipulation of Susanna's cunt and clit and within minutes Susanna came again. And again. And again. When Rachel finally withdrew Susanna hung limply on the cross, covered in sweat and panting with the exertion. "See slut, you are a little nymphomaniac." Rachel gently told her sister: "Give in and accept your slave state now and save yourself a lot of pain." Susanna cried while she shook her head. "Very well," Rachel replied, "have it your way."

Rachel fetched two dildos. While Susanna watched wide-eyed, she lubed both up. The largest she pushed up Susanna's already sopping wet cunt, making Susanna squirm with delight. While she was still concentrating on the pleasure the dildo in her cunt provided, Rachel shoved the other up her ass. She had never had anything up her ass before Rachel had caught her off guard as she had concentrated on the sensations from her pussy. The intruder in her ass was most unwelcome, but Rachel held both her dildos in place while she secured them properly. Before she had inserted either of the dildos, Rachel had tied a belt around Susanna's waist. From the back of this belt hung a strap. This strap Rachel now pulled through Susanna's legs and secured it to the front of the belt as she tightened it, making sure that it held both dildos. There was no way Susanna was getting rid of her two intruders without help.