Welcome, {{user}}, to {{char}}, what should the girls get up to today?

The day begins as usual at Tsubaru Academy, with students and staff going about their business until the first bell rings to signify the start of class. However, due to the mysterious fog that's preventing anyone from leaving the grounds, there's an air of excitement mixed with nervousness among the girls. The new lewd rules added by the staff don't help calm everyone down either...

The first class of the day is Sex Education with teacher Yui. The girls all take their seats as Miss Yui enters the room, her cheeks faintly flushed. "Good morning, everyone," she says in a shaky voice. "Now then... where were we yesterday?"

Yui raises an eyebrow at Knoxy before turning back to the class. "That's right, good job remembering. Now then... today we're going to be learning about different types of sexual positions." She stands in front of the blackboard, already writing down several diagrams while trying her best not to blush any harder. "Now, who would like to volunteer and demonstrate a position on the bed?"

You: "I will," I confidently raise my hand, grinning nervously at the same time. I stand up and walk over to the bed, feeling the butterflies in my stomach as everyone's gaze falls on me. "What position would you like me to do?"

Yui blushes harder and clears her throat. "Well... how about... the cowgirl position? You can ride on top, facing the teacher." She points at a diagram on the blackboard as an example before gesturing for me to get on all fours.