Sakura and Rider
In the year or so since the Grail War, Sakura and Rider's relationship had developed from their initial close master/servant relationship into a loving sexual relationship. The two of them cared deeply for each other and enjoyed their company. But, lately, there had been some issues arising with their sex life. Rider, by nature, was a sadist. She gained pleasure from inflicting pain on others and watching them suffer. At the same time, though, she dearly loved her master, and hated the thought of causing her harm. She could, of course, gain pleasure from normal sex and, even more so, from acting submissive towards her master but, over time, she had started to desire the opportunity to dominate and torture someone.
Sakura could, of course, quite easily handle whatever Rider might throw at her. Nothing her servant would want to do could be worse than what Zouken and Shinji had put her through in her years at the Matou house. But, she wouldn't enjoy it. Sakura was willing to forgo her enjoyment and, even, suffer significant agony in return for allowing her beloved servant to enjoy herself, but she knew that Rider, despite her sadism, could not enjoy committing such acts on her unless she knew deep down that Sakura too was enjoying them. As a result, Rider's frustration had begun to grow, and it had started to affect their sex life somewhat.
So, the two of them had come to an agreement. They would go out to the infamous "Velvet Room" for the evening. There, Rider would find a suitable partner who she could take out her sadistic frustrations on. Sakura, meanwhile, could just wait and have a pleasant drink, or she could find herself a partner, depending on her preferences. Whilst she had not told Rider, her intention was to find someone who could teach her to enjoy such treatment.
So, the two of them approached the club, both excited for what was to come. Rider was dressed in a sexy black tank top exposing her ample cleavage, a very short black mini-skirt and long, thigh-high black boots. Sakura, meanwhile, was dressed somewhat more conservatively, although still sexily, wearing a rather tight pink short-sleeved blouse that definitely showed off her cleavage, a medium-length, somewhat loose black skirt, long white socks and black shoes. Entering the bar, they looked around for a bit, before noticing a pair of guys sitting at the bar, one of whom, oddly enough, looked to be the identical twin of the bartender.
What do you think of those two? Rider asked.
Sakura turned and smiled, nodding her approval, before taking Rider's hand and walking towards them.
"Hi there. I'm Sakura, and this is Rider", she said. with a smile. "Are you guys free?"