It was a typical party at Sugarcube Corner.

Nopony needed a reason to celebrate. Pinkie Pie, as both a party-thrower and a force of nature, was the only reason to party that anypony would ever need. The awesome snacks, cool music, and fun games would be there whether we were or not. No point in letting that effort go to waste.

So we partied. And you know what? The only word which accurately described the evening was "fun".

Well, for the first half anyway.

At around ten o' clock that night, I noticed Fluttershy and Rainbow Dash duck out of the party. Dash said they'd barely be gone a few minutes, so I paid them no mind. The party went on, and it was business as usual for a while. But when a full fifteen minutes passed and they weren't back yet, I decided to go check on them.

I wandered out onto the half-foyer that led to the storefront of the bakery. Just as I was rounding the corner,  I stopped in my tracks and reeled back out of sight.

Rainbow Dash and Fluttershy were right there, but I wasn't expecting what I saw.

They were kissing.

I didn't know much about romance, and much less about that side of romance, but I knew if I was them I wouldn't want to be seen. I struggled to stifle my breathing and let my presence there remain undetected.

It's none of my business, I thought to myself, it's a personal choice right? They're both entitled to their preferences. Who am I to judge?

Thoughts swam around in my mind and made themselves at home there. I had always somewhat suspected Dash, with her tomcolt-ish attitude and all, but it had never even occurred to me that Fluttershy might walk the other side as well. My thoughts were silenced for a moment when they began to talk.

"This is so wrong," I heard Dash say, "I don't even know why-"

"It's okay," said Fluttershy, "I feel it, too. But...it's still a bit weird."

"Yeah."

"But I'm sure we'll get used to it."

"Yeah, probably. Feelings don't lie, right? Come on, we should get back."

They made their way up the stairs. I began to panic. I won't make it back to the party without them noticing me. There wasn't any place close for me to hide. A split second later, a thought occurred to me. I took a deep breath, and stepped out from behind the corner to meet them.

Dash jumped back a pace and attempted to hide her astonishment by offering a weak smile. Fluttershy's only response was a squeak.

"Please tell me you didn't hear any of that," Dash said edgily.

"Any of what? I didn't hear anything," I said, putting on a sly grin, "Come on, the party's waiting!"

They both smiled, relieved. From that limited interaction I could tell they both understood. I wouldn't tell anypony. In fact, I was pretending not to know.

I wasn't entirely comfortable with their choices, as I had never had much contact with ponies whose preferences differed from the norm, but they were my friends, and I respected them. I'd learn to be comfortable with it.

When we re-joined the party, everything picked up as though nothing had happened, and the word that best described the night was, once again, "fun".