You start with Fluttershy. She's sitting on a pink cushion, her butt facing you. She's quiet, and clearly embarrassed as shown by the blush on her cheeks. She's trembling. You want to want to comfort her, but you are too distracted by her butt. Her trembling is making her plot shake. That lovely rear rippling. You eye her butt like it's a magnet attracting your eyes. You were able to hold off long enough for Fluttershy to mentally prepare herself, but you can't wait any longer. You walk over to her butt and begin.
You move crouch down behind her plot. Your left hand moves over her cutie mark. Pressing into her soft fur. Caressing her soft rear. You can't believe how soft it feels, like cotton candy. The flesh is smooth, supple, it gives in with the press of your hand. Fluttershy coos at your touch. You start to rub your hand over her butt. From the butterfly, the curve of her ass, to the small of her back. Back and forth, back and forth. Her flesh begins to warm from the sensation. Fluttershy is truly into it now, her wings begining to unfurl.
Now you focus on her butt proper. You lay down on the pillow, your face next her ass. You grab her butt with both hands and slide it down her flanks. Your fingers gripping into butt, flesh coming up through the spaces in your fingers. But touching isn't enough. You move your face next to her cutie mark, pucker up, and plant a kiss. Then another kiss. You plant kiss all along her flank, making sure suck the flesh out with a loud "pop!". You take your tongue and trace the edges of her cutie mark. Then you decide to just lick her flank all around, like a banana ice cream cone.