Rarity was just closing up her boutique when the door jingled. She turned around, watching it slowly close. She trotted over, catching it before it closes completely. She takes a look to the left, right, up, and then down. Seeing nothing there, she shrugs. "Must have been a gust of wind."

She closed and latched the door, pulling the wall length curtain across the front of the boutique. She turned around, running snout-first into a warm, pink, and... Rarity's thought processes melted away when she felt her friend's tongue slip into her mouth, probing. Her eyes rolled as a shiver ran down her spine.

Pinkie pulled back from the kiss, a trail of saliva still connecting their tongues as she pants a little and goes on the attack again. 'I've always thought of myself as a straight mare, but...' Her thought was interrupted as she let out a low moan. She was getting wet. 'But, just this once... Trying new things is always a good idea.'

Pinkie Pie pulled back again, a blush forming on her cheeks as she lets out a small moan of her own. Rarity knocks Pinkie to the ground, straddling her. She starts rubbing her clit against the party pony's, and the blush deepened, the moan quavered, gathering in pitch. "Mmnh, Pinkie~ What's brought this on, hmm?" Rarity starts nibbling on Pinkie's ear.

Giving off another moan, Pinkie said, "I- Eyeeaaahhhh~<3 I tasted the rainbow, and then Dash. Mmph!" Rarity's grinding picked up speed. "She tast-ah! tasted li- like, every type of- oooohhhhh! fruit at once, and I... I wanted to ta-ayiee-ste what everyone else was like! Ohh, YEA!" Pinkie let out a loud moan as she came, and Rarity giggled. "What do I taste like, dearie?"

Pinkie panted, blushing a deep strawberry red. "Like vanilla frosting. Ah.. Hah... hah... Wha... what was that? Th- that was amazing..!" Rarity locked lips with Pinkie once again.

"Was that really your first orgasm, Pinkie dear?" Pinkie giggled, Rarity's little pecks on her cheeks and neck interspersed with her nibbling on Pinkie's ear. "Y-yes," she gasped. Rarity just kept nibbling on her ear.

"Looks like I'm going to have to teach you a few tricks, then. It'll help in your... 'research', I'm sure."

Rarity got off of Pinkie, turned around, and laid back down, her glistening pussy lips right in front of Pinkie's snout.

"Can you do what you did with your tongue there, too, Pinkie?" Pinkie Pie was transfixed by the glistening pink between the pouting, juicy white lips. She pushed her tongue into it, eliciting a long moan that ended in a squeak from Rarity. "Ohhh... yess! Hah, hah, j-just like that- ohhh...." Rarity shoved her tongue into Pinkie's pie, fluttering it around expertly. She delighted at the sweet taste of Pinkie's love juices. It was like the best berry smoothie she'd ever had.

The two mares lost track of time, swapping juices, moans and saliva. Rarity taught Pinkie how to be rough, sensual, and how to get somepony on the very edge of an orgasm, and keep them there until you were ready yourself. They had so much fun, that Rarity barely remembered to ask. "So... what did I taste like?"

Pinkie thought for a second. "Like marshmallows. You're magically delicious, Rare-bear! Let's do this again, hmm?~~<3" Rarity nuzzled the pink mare, giving her another kiss before swatting her rump with her tail. "Go on, Pinkie dearest. I need to shower before opening the store, and you should head home and do the same."

Pinkie giggled, and trotted down the street, her legs still too wobbly to let her hop.