"Well, that was uncalled for..." Twilight rolled her eyes as Shining had returned to his patch of the blanket. Her loins were aching, eager for some real action with the stallions, not just watching one of them shaking his junk. "Okay then. Maybe NOW we could get on with our picnic?"

"Hold your horses, sugarcube!" Applejack said suddenly "There's one thing Ah need to do first!"

"What now, Applejack?" Twilight asked in frustration, immediately getting worried as she realized what was going to happen,"D-don't tell me you're going to..."

"Eeeyup!" AJ trotted past Twilight to the same tree which Shining had already watered, "Watchin' your brother pee really made me wanna pee too. Ah've been holdin' it for a while!"

She positioned herself just over the tree's roots, right above the foamy puddle of piss Shining had created only a couple of minutes earlier. She raised her tail high, presenting her marehood at her brother's direction, making his eyes go wide, and before Twilight could stop her, she squatted down with an arc of piss spurting out of her folds.

"Aaaaaaaah!!" She sighed happily as her golden stream grew in volume and pressure, hissing loudly against the ground below. Her lips were parted by the pressure, making her flash her pink insides at her friend and the boys.

Twilight and Shining looked away in disgust and modesty, but Big Mac couldn't help but stare at his sister's gushing pussy as she was watering the ground like a power-washer. His "Little Mac" had fully woken up from its slumber, standing up like it was trying to pierce the very sky. He had never imagined watching a mare, specially his little sister of all ponies, urinating in front of him could be that erotic!

As Applejack's piss-spray was faltering, she turned her head to check on her brother's reaction - and of course, his ERECTION - noticing his cock towering in it's full flared and throbbing glory!

"See somethin' ya like, Big Bro?" AJ asked teasingly, swaying her hips a little to make her piss flow from side to side.

"Eeeeyup..." Mac replied in awe, his cock twitching as he was enjoying the show, making AJ smirk.

"Atta boy! Stare as much as you like..." She squeezed the last squirts of her piss out with a couple of winks from her priced clit and then shook her rump for a moment to get the last drops off her snatch. Big Mac swallowed hard as he watched AJ's hypnotic swaying, a drop of pre gleaming on the tip of his cock.

"Aaah, that felt good!" AJ sighed as she wiped her pussy with her hoof, "That cider really did its stuff!"

"C-could we just... Stop doing this already?!!" Twilight pleaded as Applejack walked towards her, noticing how the big puddle under the tree had started flowing down the slope, dangerously close to the blanket they were sitting.

"Say what, we've already seen each other's cocks and pussies!" Applejack replied calmly, putting her wiping hoof on Twilight's shoulder, much to her horror, "Ah guess you fancy town ponies really haven't seen that side of life!"

"Well, unlike you farm ponies... We do have standards!" Twilight snapped, brushing AJ's hoof away, "Can we just get to the round two, already?"

"Sure thing, Sugarcube!" Applejack chirped and then looked at Twilight teasingly, "Ya sure ya don't need to tinkle too?"

"NO!!!"

-The End-

Author's Note

I was asked to do another chapter with the roles reversed.

That's all folks, for real!