Jerk off instructions.

"I'm not going to sleep with you," said Ginny in her low, sexy voice.

"Um... okay," you replied.

She looked you up and down, mainly down. "Can I see it again?"

"See what?"

She brushed her long, green hair out of her face. "Your cock. I've never seen one in person before today. Can you take off your clothes so I can get a better look?"

You were breathing so hard you couldn't reply. You just took off your clothes while the extremely curvy girl watched you. When you were done she licked her lips slowly and stared at your hard cock.

"I was looking down at you last time because you were sitting. Could you get on your knees?"

"Yeah, I can do that," you said as you lowered yourself to the floor. Despite being short for a girl, Ginny was still a lot taller than you. From the floor, she looked like a giant.

"It's better if you don't talk. Is that okay?"

You nodded.

"Go ahead and start rubbing it. Slowly."

You did as she said. You couldn't help twitching a little bit as you rubbed your cock and stared at the beautiful girl looking down at you.

"That's good," she said with a slight growl in her voice. "Up and down the whole thing. Maybe play with the tip a little? Yeah, just like that."

Ginny had such a pretty face, but you looked down a bit. Ginny was wearing a bright orange t-shirt that stretched so much to fit around her huge tits that it rose up a little to show off her tiny waist.

Ginny noticed where you were looking and said, "Do you like big breasts?" You nodded, and she put her hands under her boobs to lift them up a little. "Do you like my big breasts? I think you do. Yes, you definitely do. Use your other hand to play with your balls while you look at my big boobs."

She moved her breasts up and down while you played with yourself with both hands. Completely involuntarily, your eyes squeezed shut and your back arched. You came in your hands.

"Well, that was quick," said Ginny. "I thought that might happen. That's why I said I wouldn't sleep with you. Well, part of the reason. Keep playing with yourself, let's see how long it takes for you to get hard again."

It didn't take long. Ginny was fucking hot, and watching her standing over you, playing with her huge tits, lit a fire in you. She rubbed her nipples through her orange t-shirt, and your cock twitched in your hand.

"Stroke it faster now. Good, I like that." She gave you a tiny smile, the first smile you'd seen from her all day. She rubbed her nipples harder through her shirt and said, "Do you want to suck on my nipples?"

You nodded.

"Do you want to push both of them into your mouth and lick them?"

You nodded harder.

Ginny moved her hands under her big breasts and massaged their mass. "Do you want to shove your whole head between my tits and roll it around?"

You couldn't nod, your neck kind of seized up as you stroked your cock as hard as you could.

"Yes, I think you do want to shove your head between my tits," said Ginny. Her voice was the sexiest thing you'd ever heard. "Do you want me to take my shirt off so you can see them?"

You nodded furiously.

Ginny smiled wider, but made no move to take off her shirt. "Stroke faster for me. Faster! Yes, cum for me, cum now!"

You came again, harder this time. Your load shot upwards, and it would have been so great if it could have flown up and hit her huge breasts, but it barely got two feet away from you, landing in front of her feat. You collapsed backwards and leaned on your bed, breathing heavily.

Ginny was breathing a little hard, too. "Well, that was... interesting. I'll see you in class. Bye."

She turned around and walked out of your room, leaving you on the floor, naked and exhausted.

You masturbated three more times that night while picturing that experience before you fell asleep.