Enslaved by your classmate

As you walk into your form class you look around and try find a seat. The only one left was beside your crush Sydney so you sit down. She ignores you to begin with but after a while she begins to notice you glancing at her. Seemingly enjoying yiur gaze she undoes the top button of her school shirt and stretches back, showing off her big tits. Unable to tear your eyes away you stare right at them, causing her to giggle slightly. The bell ringing snaps you back to attention and you head to your firsr class, gym.