There can never be too many moments of Diggle interacting with individuals who have powers.

As always, all characters belong to DC Comics and the CW, and this is written purely for fun. Thanks for reading. I appreciate it.

...

[Deleted scene, S.T.A.R. Labs hanger, at various points after the team starts training against Supergirl but before Barry discusses Flashpoint with them (The Flash 3x08, "Invasion!")]

"So let me get this straight," Diggle said, trying desperately to keep his brain from exiting his skull and running away. "On your Earth, you're called the 'Girl of Steel'?"

"Yup," Kara said brightly. "My cousin's called the 'Man of Steel.'"

"And that's because you're bulletproof?"

"Yup," Kara said again. "Well," she amended, "I guess I'm also knifeproof and punchproof and…you get the idea."

Diggle narrowed his eyes. "I don't buy it," he said slowly, raising a finger slowly to be level with Kara's shoulder. Experimentally, he prodded her and, sure enough, his finger crumpled against her without so much as swaying her.

"Told ya," Kara snickered.

Diggle, refusing to accept his senses, poked her shoulder a couple more times, his finger folding each time as if running into a steel column. "Hugging you must be impossible," he muttered.

"Well, actually I can relax my body if I choose to. Try to surprise me with a punch and, yeah, you'll probably break your fist, but if I see you coming at me for a hug, I can soften up," she explained. "Here, try it now," she finished, wiggling her shoulder.

Diggle poked yet again in the same spot, but this time Kara's shoulder gave under the pressure as if she were just a normal person. Kara thought this would put Diggle more at ease, but instead he withdrew his finger as if he'd been burned. He put a hand to his face as if he were suddenly developing a headache. "Oh, this is so weird," she heard him mutter, as he turned around and walked off without a word to her.

Kara sighed and tilted her head a little, feeling a little concerned she wasn't making a good impression with the team when Felicity sidled up to her. "Don't worry about Dig. He's a very meat-and-potatoes kind of guy, that's all," she reassured her. "He got used to Barry, so he'll get used to you."

"How did he react to Barry having powers?" Kara asked.

"He drooled a little bit," Felicity recalled. "Also threw, like, all of his French fries into the air," she added, miming the action by flipping her hands up suddenly.

"Really?" Kara giggled. "That's sort of adorable."

"Yeah," Felicity replied fondly. "Don't worry, once Dig gets to know you, he'll be one of the best friends you could ever have."

…

Diggle stood to the side, taking a break from getting his butt handed to him while the rest continuing training against the brick wall that was Supergirl. He wanted to watch something one more time, to reassure himself he wasn't hallucinating.

As Ray flew in his suit and attempted to distract Kara, Professor Stein and Jax clapped hands together. There was a burst of yellow-and-orange flame, and then suddenly Stein just…wasn't there anymore.

Now it was just Jax standing alone, except his head and hands were now flaming, and his eyeballs had gone completely white. He was now flying through the air, shooting fireballs at Supergirl while dodging and weaving as Firestorm.

A quick battle ensued, but of course the Girl of Steel continued to win the day, knocking Firestorm into the ground. Another burst of flame, and suddenly…there was Professor Stein again, sitting there knocked on his butt next to Jax. No flaming heads or hands, and everyone's eyes had their normal pupils.

Diggle's hand snatched out to grab Cisco's arm when Cisco happened to walk past him. "Cisco," he said, in complete seriousness while pointing at the Firestorm duo, "how the hell does that work?"

Cisco, initially confused and mildly alarmed by the intensity of Diggle's question, looked to see where he was pointing and then shook his head. "Dig," he said softly, as if trying to calm a toddler in the middle of a tantrum, "that is a very long story." He then gently extricated himself from Diggle's grip and walked away, while Dig continued to stare as the Firestorm duo gingerly stood up and dusted themselves off. Not noticing that Cisco had walked away, his hand was still hanging mid-grip in the air.

Walking back to Diggle, Cisco gently pushed his hand back down to Diggle's side, and then he went about his business, smirking and shaking his head again.

…

"Barry, I really have to know. If you're superfast at everything, what about when you do normal things? Like, when you're eating, how long does it take for you to…you know?"

Barry stared back at Diggle, his mouth literally full of food as he held a burger between his hands. He stared back at Diggle, willing him to see the awkwardness of the situation, but Diggle just continued to stare intently, clearly hoping for an answer.

Luckily, Caitlin came to his rescue.

"I'm so glad you asked that, Dig," she said brightly, stepping directly into his line of sight to shield Barry from view and give him an opportunity to finish his lunch break. "After two years of studying Barry's powers, I can give you a biomolecular explanation of how his metabolism and physiology have changed on a cellular level," she continued with enthusiasm, putting a hand on his shoulder and steering him away from the Scarlet Speedster.

"Actually Caitlin," Diggle began, trying to break free, "it's really just this thing that's been bugging me so—"

"As it should!" Caitlin exclaimed, her grip on his shoulder still iron-strong. "How does superspeed affect normal human bodily functions? It's an important question, and one I'm happy to go into deep, deep detail with you!"

Diggle continued to protest weakly, but Caitlin determinedly strode away with him in tow, beginning her long-winded scientific explanations as she took a quick peek over her shoulder. Barry smiled gratefully at her diversion and gave her a thumbs-up. Finally swallowing, he mouthed, "Thank you, Doctor Snow."

Caitlin gave a little nod and smile before returning her full attention to Diggle, launching into an explanation of superspeed digestion as Diggle continued to regret his question with each passing second.

…

Diggle leaned against a desk with his arms crossed, watching from a distance as Sara conversed with Iris and Felicity. Shortly after John Constantine had rescued her soul, Sara had set off on her own in an attempt to heal her mind and body, and thus Diggle had never gotten to spend much time with her since then.

Before, as the Canary, Sara had mostly been a serious, haunted individual. Her experiences on the island and in the League of Assassins had seemed to harden her mannerisms, and while she was loyal and kind, she had also been distant.

Now, watching her as the White Canary, Diggle was surprised to see her smiling and joking around with the other women. The weight of the world hadn't been taken off her shoulders, exactly, but she seemed to have finally found the strength to bear it without letting it crush her.

Sara had literally been given a second chance at life, experiencing a revival after a year in a grave. How did that feel? Did she see anything…beyond? Was there anything fundamentally different about her life now compared to what it had been then?

Straightening up, Diggle stood up to go talk to Sara. This was such a sensitive topic, but his brain kept needling him for answers. He'd just have to phrase his question very delicately…

Suddenly, the manic smile of Harrison Wells was in front of him.

"John, right?" he asked enthusiastically.

Diggle took a couple steps back. "Yeah," he confirmed. "John Diggle. And you're Dr. Wells."

"Oh, no no no," was the hasty reply. "I'm no doctor. I'm a novelist. Call me H.R.," he continued, still with a manic look in his eyes.

"Right…" Diggle said, unnerved that this was the same face that had made Barry's life hell a couple years ago. "Nice to meet you. Anyway, I was just going to—"

"Actually," H.R. interrupted. "Oops, so sorry to interrupt. But, now that I have your attention, would you be willing to answer a few questions for this book I'm writing?"

"Um, what kind of questions?"

"Well, really questions about you. Most of my research has been in Central City on this Earth, but I would love to get a perspective away from all the metahumany things happening there. You're from Star City, correct?"

"Yeah," Diggle answered again, cautiously.

"Occupation? Well, you know," H.R. chuckled, waving his hand to indicate the surrounding hanger and superheroes, "aside from all this."

"Uh, ex-military."

"That makes sense. Family?"

"Yeah, a wife and son."

"Really?" H.R.'s eyes widened. "Can you tell me about them?

"You want to know about my family?"

"Of course," H.R. exclaimed. "What's the point of all this," he said, waving his hand around again, "unless there're loved ones to defend?"

Diggle gave a small smile. He sort of liked this version of Wells. "Well, yeah, I guess that's true."

H.R. smiled in response. "What's your son's name?"

By the time H.R. had finished his interview, Diggle had forgotten what he had wanted to ask Sara.

…

Oh, this is bad. Colors zipped by his vision at lightning speeds.

Why did I decide to do this? Air rushed past his face, too fast to comfortably breathe.

I can't, I can't, stop, stop, stop. Suddenly, he did stop, conveniently right in front of a trash can into which he immediately vomited.

Barry pulled his hand away from Diggle's collar and scratched the back of his head awkwardly as he tried not to stare at Diggle puking after a speed run. "Are you sure you want to keep doing this?" he asked worriedly.

Diggle thought about nodding his head but wasn't sure his stomach could take it, so he grunted affirmation instead. "You might need to superspeed me without warning during this fight. I gotta get used to the feeling. I think I'm—"

Which is as far as he got before retching again.

Barry grimaced and timidly patted Diggle on the back. "Sorry, man."

Diggle groaned and straightened up. "It's fine, Barry," he said, wiping his mouth. "Hope I'm not offending you or anything."

"Offending me? What do you mean?" Barry asked, confused.

"You as a speedster has always freaked me out, but I never thought it would literally make me puke," Diggle explained with a little smirk.

Ah, Barry thought, amused. "Nah, it's cool," he chuckled. "So I'm a metahuman and I make you sick. I get it, I see how it is, Dig."

Dig laughed weakly in response, before straightening up. Sighing, he flexed his neck. "Okay, let's try this again."

"If you say so," Barry sighed, before grabbing Diggle's collar and going for another super run around the compound. We're gonna need a bigger trash can, he mused idly.

…

"So," Diggle struggled, pointing at Jax. "Stein physically merged with you?"

"Yeah," Jax confirmed, his blank white eyeballs continuing to unnerve him. "He watches my back for me, makes sure I'm not ambushed."

"Uh, how does he 'watch,' exactly?"

"Look, it's better if you don't—"

Diggle leaned forward, expecting Jax to finish his thought, but Jax had suddenly gone still, his brow furrowed.

"No, that's too complicated."

Dig looked from side to side, not sure if Jax was still talking to him. "What's too complicated?" he asked, confused.

Another pause, then, "Come on, Grey, I don't want to repeat all that mumbo jumbo."

"What…what is happening?" Diggle asked, alarmed.

Jax held up his hand. "Just a sec, Dig. I'm talking to Grey…er, Stein."

"Right now?"

"Yeah."

"I don't hear anything."

"He's talking to me in my head," Jax explained, pointing at his own face. Then, in the same breath, "Grey, that doesn't make any sense! Can't I just—" Another pause. Diggle's eyes got wider and wider as he watched Jax debate with…well, no one, as far as he could see or hear. Finally, heaving a big sigh, Jax looked at Diggle again. "Fine. Okay Dig, this might be a bit confusing, but basically—"

"No, no," Diggle interrupted, holding up his hand. "I learned my lesson with Caitlin. I don't want to know." Immediately, Diggle turned around and quickly scurried away.

A small smile tugged at Jax's lips. Meanwhile, in his head, Stein chided, "Jefferson. I wasn't saying anything."

"I know, Grey. I just wanted to freak him out."

…

Diggle walked up to Kara as she chatted with Felicity with his hands behind his back. "Hey, sorry if I made you feel uncomfortable earlier," he said as the two women stopped talking and turned to him. "I can barely wrap my head around metahumans, and aliens are just throwing me for another loop."

Kara shook her head. "That's okay. I'm learning, too. I, uh," she said, chuckling at herself in embarrassment, "I'm actually not used to a world that hasn't heard of either me or my cousin. Sorry, is that really self-centered?"

"Trust me, if you existed on our Earth, with all the powers you have, everyone would know your name," Diggle assured her. "Speaking of which, I heard you have x-ray vision. Is that true?"

Kara nodded. "It is."

"Prove it," Diggle shot back mysteriously. "What am I holding behind my back?"

Kara lowered her eyes to Diggle's midsection and narrowed her eyes. She raised her head in confusion. "A donut?"

Diggle smiled. "Okay, now I'm really convinced." With that, he pulled his hands from behind his back, revealed the donut resting in a napkin, and then offered it to her. "Barry mentioned you like donuts," he explained.

"Aw, thanks, that's really sweet," Kara beamed, taking the donut. As she did, Diggle flipped one of his hands over, holding out his fist.

"Welcome to the team, Kara."

She laughed and bumped his fist with hers. "Thanks, John."

"My friends call me Dig."

"Thanks…Dig."

With that, Diggle walked away, and Kara smiled at her donut for a moment, happy to be bonding with these new people from a new Earth. Feeling a nudge, she turned her head to see Felicity smiling at her.

"What'd I tell you? One of the best friends you could ever have."