Sakura and Shirou
Realising that the construct wasn't looking likely to move any time soon, Sakura and Shirou decided that this would be a good time to eat the lunch they had prepared before departing. So, the two of them took out their bentos and began to eat as they continued to watch the motionless construct. However, even after taking the time to eat, the construct had still not moved, and the two of them began to get a little impatient.
"Senpai, I don't think it's going to move", Sakura said. "We might want to get back to searching for a gym."
"I think we should wait a little longer, just to be sure", Shirou replied. "I don't want people getting hurt because of our negligence."
They waited a little while longer, considering whether it made sense to make a move. However, before they could make that decision, the construct suddenly jerked upright without warning. Surprised, the two of them immediately jumped off the bench they had been sitting on, preparing to take action if necessary. However, instead of moving to attack, the construct simply split apart, revealing what was clearly a portal, made out of Sakura's own magic. Out of which stepped a girl who was recognisably Sakura but, yet, also clearly different. She was taller, for a start. Her hair was set into drills, like those they had seen on her presumed sister. And she was beautiful, even in comparison to her alternate self. Her breasts were perfect, her body was chiselled and completely lacking in fat.
Neither Shirou nor Sakura could take their eyes off her. Shirou couldn't help but rake his eyes over the familiar-yet-different body, his gaze lingering especially on her full, perfect breasts, clad only in a tight sports bra. And Sakura, meanwhile, couldn't help but compare herself to the alternate, a comparison which was certainly not flattering. The girl had perfectly-chiselled abs and, unlike Sakura, her body was completely free of fat, aside from in the places where it was desired. She felt utterly inferior, a feeling that was worstened by a glance as her clearly-entranced husband. Yet, as she looked closer, Sakura couldn't help but notice a small bump in her trousers, something that would not be out of place on her husband.
Is that...? she thought, feeling a little better about herself at the thought that the girl might not be as perfect as she appeared.
But, then, Sakura's thoughts were brought back to their situation, as the girl looked in her direction and spoke, asking about the familiar.
"I suppose. But we never actually touched it. It would be more accurate to say that it broke itself, really", Sakura replied.