Sunset was a bad friend. She was sure of that. She knew that if the girls heard that, they'd complain and do their damndest to convince her otherwise. While she loved them all dearly and would appreciate their efforts it's hard to argue with the evidence and that evidence was the blue hand wrapped around her dick.

She let out a quiet moan as she looked around the theater. This one was known for being particularly dark, which was perfect for couples doing this kind of thing. The problem came from the fact that she and Rainbow weren't a couple.

The couple here were doing nothing but holding hands while Rainbow's other hand stroked her like nothing was wrong. She may be a bad friend, but Rainbow was a very bad girlfriend. It was a part of why she didn't feel so bad about what she was doing.

AJ hadn't looked over once the entire time. She was completely trusting. Poor girl.

She sighed with a smirk as Rainbow reached down and fondled her balls. The girl was awkward, clearly inexperienced but enthusiastic. She remembered clearly how obvious Rainbow had made it about what she wanted.

The locker room wasn't a place for secrets. Especially not physical ones. Still, Sunset had done a particularly good job at hiding her secret for quite a while. Only half of the girls knew after all these years. Sunset was quite proud of that.

Of course, "pride comes before the fall" is the saying.

She didn't notice the athletic girl come around the corner to grab…something. Sunset didn't think either of them remembered once they made eye contact. Not that the eye contact lasted long since Rainbow's gaze immediately trailed downwards.

Sunset huffed, thinking Rainbow was going to make a joke or something so she turned and put it on full display. "Want a better angle? Happy now?" She grumbled. But to her surprise, Rainbow nodded before wiping her lips. Was she… drooling while staring at her dick?

The sound of a locker slamming seemed to snap her out of it and Rainbow left with a deeply blushing face.

Later when they were all dressed and walking, she and AJ were talking about going to see a movie. It was a date in everything but a name. Well, until Rainbow tossed out the bombshell "Oh yeah! Sunset wanted to see that one. You wanna cum?"

Sunset could swear that Rainbow said that last word weird somehow. She couldn't place it but… it was somehow weird and hot?

She shook those thoughts clear "I couldn't intrude Rainbow. That'd be rude."

Rainbow laughed and thanks to their group walking close enough together, no one noticed the way the groped sunset's crotch "It'll be fun!"

AJ seemed like her smile was straining a little, but she was a worse doormat than Shy at times when it came to Rainbow. She wrapped an arm around Sunset's neck, fully unaware that her girlfriend still had her hand full of her balls. "Well shoot. I suppose I can't push ya away. It'd be downright rude. Specially after Dash invited ya. If ya really wanna see it, then come right along."

Rainbow squeezed one more time before letting go and grabbing AJ's hand with the same one.

She couldn't believe that this kind of persona was hidden in Rainbow. She approved though. While Sunset may have put her bully days behind her, she couldn't deny that some of that mindset stayed with her. Like how the idea of getting stroked by someone's girlfriend while they held their ignorant hand was pretty damn hot. How she wanted to do more.

She grunted and took a deep breath. The movie was building up to an action scene. A nice, loud action scene. Which would be perfect for what she planned. She just had to bite her lip and hold off long enough. Which was a little tricky seeing how she'd already been stroked for…jeez, half the movie? Rainbow really was bad at this.

Her friend's lack of dick handling skill was pushed aside as the perfectly, stupidly dark, overly loud action scene got started. Sunset took that opportunity to reach over and force Rainbow's head down. She expected a little resistance but maybe the surprise had won out. Maybe Rainbow was just a slut for Shimmer shaft. Either way, her mouth was wide open. It was probably the second one anyway. Rainbow was the one who invited her here and the one who reached under her skirt at the start, barely waiting for the lights to go down.

Sunset realized something very quickly. Rainbow was complete shit at giving head! There were so many teeth! She hissed and moved a little "Holy fuck you're bad at this!" She hissed through her teeth as she pulled Rainbow back by her hair until only the tip was left. Not that the chromatic slut had taken much more than that before anyway. She could hear some grumbling from her cock and, while the vibrations felt good, she was sure that Rainbow was making excuses.

Sunset sighed and smiled as she simply enjoyed the sound as Rainbow gulped mouthful after mouthful of seed down eagerly. Even with her complaints she didn't pull away. It was like she didn't want to waste a drop. That was pretty hot.

All good things must end though and eventually even Sunset's overly long orgasm finished up. Rainbow kept her head down a little longer though. Her tongue swirled around the head, swiping along the urethra. She really did want every drop.

Rainbow did eventually pull up and as she did, she pulled Sunset's skirt back down.

Then Rainbow unbelievably leaned over and kissed AJ. "Love you." She whispered in what was just loud enough for Sunset to hear.

AJ flushed and kissed her back. "Ya little minx. What about Sunny?" She asked as Rainbow kissed her again, deeper.

"She's distracted by the movie. I told you she really wanted to see it. She won't even notice." Rainbow completely lied.

AJ glanced over to see Sunset, popcorn on her lap, seemingly enthralled with the movie as Rainbow's tongue pushed its way into her mouth. "A- alright. Jus' a li- what's that taste?" Sunset almost lost it right then and there.

"Popcorn." Rainbow lied as she kissed her lover again.

Sunset grabbed some more popcorn and smirked. Front row seat to a pretty damn good show. She was glad AJ agreed to let her come now.

Author's Note

I have at least a couple more chapters in mind.

Inspired by a series of pictures I saw on derpi where Rainbow constantly cheated on AJ with the girls by Iconoclasm. Good shit.