As much as you're enjoying yourself, you can't help but feel awkward being pulled along by Miss Anderson. You're far too distracted by the new sensations from your legs and ass (not to mention Miss Anderson's ass cheeks grinding against your dick) to walk properly, and you're also taller than she is, meaning that you have to bend your legs uncomfortably so she can walk. You come up with a quick solution, and tell Miss Anderson to stop walking. She does so, and continues the lesson. Meanwhile, you get to work, with a devilish grin on your face.
You run your hand across Miss Anderson's left leg, and you hear her moan slightly in pleasure. Experimentally, you poke it slightly, and you're pleased to see that your finger leaves an indent in her flesh, like Play-Doh. You rub your left leg as well, and shudder as it softens too. You give both you and Miss Anderson's right legs the same treatment, and then you whisper in her ear, "Hold still." She nods, and from your angle you can just barely see that she's biting her lip in anticipation. The whole class is silent as you reach around in front of Miss Anderson and push her legs toward you. In an instant, they collide with yours, and you can feel both pairs mixing together, as your skin, muscle, nerves, and bones become one. You and Miss Anderson both arch your heads back in pleasure, and moan loudly at the same time. Your dick pushes furiously against her ass, but you know that you can't move it away from its current position. Looking to the side, you can see that you and Miss Anderson are joined at the mid-calf, which splits to form a Y-shape that leads up to your torsos. You experimentally try to bend your hips back, but you just tug on Miss Anderson. Interestingly, she doesn't respond. You lean in, head over her shoulder, and stare her in the face. She's drooling and her eyes are glazed over, in apparent ecstasy.
"Um, Miss Anderson?" you ask.
"Y-yeah?" she responds, sounding slurred and out of focus.
"Don't you have a job to do?"
"Oh-oh! Right! Yes! So, class, if we want to find the log of 100..."
She continues to teach the class like normal, walking around flawlessly. Because of the merge, your shared legs have become twice as curvy, and they jiggle and bounce pleasurably with every step Miss Anderson takes. You're fine with her having control. After all, if she tries to take you somewhere you don't want to go, you can just take over. Right now, though, you think that being a passenger was fun, especially because you get to tease all the students staring at your asses. At one point Miss Anderson is writing on the whiteboard, and you can feel someone staring at you. You do a half-turn to see who's staring at your behind,and lo and behold, it's the whole class! You smile, and give them a wink. A few boys turn red, along with a couple girls. Upping the ante, you give your booty a smack. Now the entire class goes red, and you can see a lot of the boys put books in their laps. You snigger, and think, 'I could get used to this.'
Pretty soon afterwards, class ends. Miss Anderson goes through her normal speech, about homework, quizzes, exams, yadda yadda. While she's doing this, you think about what you and Miss Anderson are going to do next.