This chapter leads on from Chapter 16 of Vinyl and Octavia: University Days. A link can be found in the description.

Vinyl decided to reply with a very enthusiastic kiss, which was far more engaging than the simple peck they had shared moments ago. There was something different about it this time, though. Kissing was no longer as far as they could go. A wave of heat rushed through her as the realisation of what they were about to do became apparent.

Octavia seemed to be thinking a lot less about the significance of their actions, instead simply losing herself in the moment. The DJ decided she had the right idea, and focused all of her attention on the grey masterpiece beside her, of which she intended to take a full tour.

The kisses continued for several minutes, but soon Vinyl sheepishly trailed off after a second sudden realisation. “Uh, Octavia…”

The mare frowned in concern. “What’s wrong?”

Vinyl felt like an absolute idiot, but there was really no avoiding it. “W-what do I do?”

“I… have no idea.”

For a moment, they just lay there, panting slightly. Then, in a moment of brilliance, an idea popped into Vinyl’s mind. “Hey, d’you remember when you walked in on me in the shower?”

“Yes…”

“Do… do you remember what I was doing?” The DJ blushed lightly, but considering what they were trying to do, it wasn’t really a big deal now.

Octavia smirked a little. “You were… touching yourself.” Her nostrils flared and her breath quickened, both very good signs in Vinyl's opinion.

“Only a little bit,” mumbled Vinyl, feeling embarrassed despite herself.

“It looked like more than a little bit,” giggled her cellist. “You had the most adorable look on your face, too.”

“Okay, okay. You made me crazy-horny and I needed to blow off some steam. Happy?”

“Quite.” She really did look rather pleased with herself.

“But, uh, I was thinking that if I can make myself feel good by doing that, I… could try it on you?” As soon as the words left her mouth, Vinyl wanted them back.

Oh Celestia, what am I doing? Did I seriously just offer to do that? That’s probably not even what mares are supposed to do together! Will she get angry if I quickly look some stuff up on my computer?

“Okay,” Octavia replied. Granted, it wasn’t casual, and she sounded a bit hoarse, but the speed of her response still shocked Vinyl.

She… really trusts me…

Vinyl leaned in for a grateful smooch. “Can you tell me if I do it right? Just say something whenever it’s good or bad.”

“Okay.” The grey mare’s chest was rising and falling rapidly now, and she was swallowing every few seconds, but she didn’t break eye contact for a moment. The DJ realised she probably looked the same.

Her hoof shook as she trailed it down Octavia’s belly and over the entrance just beyond it. The cellist gasped and her eyes widened.

Vinyl wanted to punch herself. “Sorry, sorry! Too fast?” In the second it took for Octavia to reply, Vinyl savoured the fact that something warm and sticky was now dripping off her hoof. There was absolutely no doubt about it now, Octavia was extremely into it.

“N-no, it’s fine. I just… haven’t felt that feeling before. I don’t, um, touch myself.”

“Ever?”

Octavia nodded, now constantly blushing as she too realised what was happening. “Oh Celestia! Vinyl, this is amazing, are we really doing this?” she gushed, unable to contain her excitement any longer.

“I’ve only touched you once,” giggled Vinyl.

Every fibre of her upbringing was screaming at Octavia that her next words would be unbelievably depraved and that she should definitely never say them.

“Perhaps you should fix that,” she whispered, embracing the thrill of saying something so completely… dirty! She almost clapped her hooves excitedly before remembering she had to act like a grown mare.

“Y-yes ma’am.” Vinyl lowered her hoof once more, this time taking a moment to tickle Octavia’s inner thighs (which elicited a very satisfying squeak) before attending to the main prize. She lightly pressed against the centre of her fillyfriend’s warmth and wetness and waited for her tense body to relax slightly.

Then, ever so slowly, she began to rub. Just tiny little motions at first; up and down, up and down. But the longer she did it, the easier it became. The fact that her hoof was now completely slicked in Octavian love-juice only made it that much simpler.

Octavia couldn’t hold back her little moans any longer. The mood solidified, bringing with it a mature sense of purpose. They were seriously doing this. Vinyl couldn’t believe what she was doing; lying next to her gorgeous roommate and watching her squeal and groan on the edge of her hoof. It was everything she had imagined when she was by herself and more.

“V-Vinyl-l-l-l-l,” whispered Octavia, each rub of her lover's hoof causing the drawn-out moan to stutter a little. “I think I’m…”

“Shh,” hushed the white mare. “Just let go and do it. I wanna look into your eyes as you finish.”

Octavia looked up at her love, her face expressing more than words ever could. Vinyl leaned in closer to try to push her over the edge with dirty talk. If it sounded so good when the cellist did it, why not her?

“Does that feel good, Octavia? Do you like it?”

The sweating earth pony reacted instantly, using her thighs to press Vinyl’s hoof harder against her. The unicorn rubbed even harder, enthused by seeing the classy mare losing control.

“I guess you do, don’t you? You love it.”

“Vinylllllll…” she whined, bucking her hips in a desperate attempt to get even closer to the source of her pleasure.

“You’re gonna cum soon, aren’t you? You want it so badly I can see it in your eyes.”

And that last bit of dirty talk was the tiebreaker. Octavia let out a low, elongated moan as she bit her lip and looked straight into Vinyl’s eyes, just like she wanted. The DJ got to watch every second of her fillyfriend’s first orgasm as it passed through her body like a sonic rainboom.

Her hoof was splattered with something very hot, and Octavia’s limbs were digging into the bed with all of her strength, but it was her eyes that held her attention the most. Seeing every wave of pleasure hit them, watching them lose focus and shudder with the rest of her body, that was the white mare’s true reward.

It was a good few minutes until Octavia stopped shaking, and another good few minutes before she could talk. “Y-you are the m-most amazing pony…” she started, trying her hardest to say something meaningful while still recovering her senses.

Vinyl hushed her again. “Shh, just relax. You can tell me how awesome I am later.”

Indeed, the DJ was feeling extremely proud of herself. She finally knew for certain that she wasn’t a complete failure in bed, and that fact alone was worthy of celebration.

But for now, as Octavia dozed happily beside her, completely spent, Vinyl was content to simply smile and wait.

See the morning after here.