"I think I still need some guidance, professor," She stated, looking down at you through her cleavage. It was a miracle her bra was still containing her breasts, you could hear the stitches ripping with each passing moment.
"This lesson's over, I think you should go.." You resisted, thinking about what had transpired this evening.
Your answered the door, finding Arabella standing there in her school uniform with her backpack on.
"Come on in," You said, stepping aside to welcome her for her tutoring. You didn't usually tutor from home, but you made an exception for Arabella. She was just so persuasive..
She entered and you led her to the dining room where you both sat.
"How were your classes today?" You asked, making conversation as you dug out the material for the next exam.
"Fiiine, I guess," Arabella responded, looking around the room before locking eyes with you. "I'm so glad you made room in your super busy schedule to teach me, professor."
"It's my pleasure, Arabella, I'm always here to help any student who wants to learn," You stated. It wasn't necessarily untrue, but this was the first time you had tutored anyone this semester. "Now, pull out your textbook and turn to page 324."
Doing as you requested, she looked at the page. "This looks haaard," She whined.
"Well that's why I'm here to teach you!" You began reading through the page, trying to explain it as best you could.
"Oh my god, that makes so much sense, professor!" Arabella exclaimed, putting a hand on your thigh. Rubbing it gently, she continued, "Thank you..."
Awkwardly, you continued, while she continued rubbing your thigh. "N-Now, turn to page 334." Again, you explained the material. This time, Arabella wasn't even looking at the book. Instead, you caught her staring at you, her hand drifting further up your thigh.
"D-Does that make sense?" You asked, trying to stay focused on the book.
"Yesss, so much sense!" She grinned before her hand touched what had been hardening between your legs. "You're so smart... How can I repay you?"
"That's what I'm here for!" You smiled nervously. "No need to repay me, Arabella."
"I disagree..." She said softly, unzipping your pants and undoing your button. Reaching in, she pulled out your cock, already hardened from her delicate touch. "I have just the thing in mind..."
"Now, Arabella.. This-" You started before you were cut off, her lips connecting to yours. You would be lying if you said this very thing hadn't crossed your mind multiple times throughout the semester. In fact, it influenced your decision in allowing her to tutor in your home.
Pulling away, Arabella looked at you deeply. "Shhhh, just enjoy this, professor." She stroked your penis slowly, spitting on her hand and moistening your rod.
After a short while, she pulled up her skirt, revealing that she wasn't wearing anything underneath. She stood in front of you, putting a leg on either side of you. Lowering herself, she inserting you into her, soft moans coming from both of you.
She was already so wet and tight... It felt so good. You forgot that she was your student.
Bouncing up and down on your lap, her tits jiggled under her uniform right in your face. Wanting to see them, you pulled at her buttons, tearing the front open.
"Professor!!" She exclaimed with a smile. "Naughty, naughty!"
Fondling her breasts, you thrusted into her as she continued bouncing and grinding on your cock. It didn't take long before you were going to finish.
Grabbing her ass tightly, you threw your head back, moaning loudly. "F-Ffuuuuck," You groaned, squirting your seed into her warm pussy.
Leaning down, she whispered in your ear. "You like that? Professor." She emphasized the last word, as if trying to remind you of your position here.
Before you could answer, she stood up off your lap. Stretching, she looked down at you with a grin. If you weren't mistaken, it looked like she was standing on her tip toes... And also getting wider.. Curvier. Looking down, you saw that she was flat on her feet. She was... Growing.
"Arabella?" You asked, still gathering yourself after she fucked you.
"Mmmmm..." She moaned, closing her eyes. "It feels so good."
Her shirt tore, falling to the floor beneath her. Her skirt struggled against her widening ass and thighs, riding up until her pussy could be seen from the front. Her bra stretched as her breasts grew the most, ballooning out the top of her lingerie.
Stunned, you could do nothing but watch as she continued to grow. In turn, you felt something change in you. Your sleeves descended past your hands, your pants past your ankles. Everything was getting looser, the ground further from your toes as you sat on this growing chair. Only, it wasn't growing... You were shrinking.
Now half your size, you looked up at Arabella who was twice her original size.
"I think I still need some guidance, professor," She stated, looking down at you through her cleavage.
"This lesson's over, I think you should go.." You resisted.
Leaning down over you, this once cute girl was now an imposing, dominant figure. "But professor. I thought you were 'always here to help any student who wants to learn'. And I want to learn." She declared as she looked down at your cock, already hardening for her second lesson.