Prompt: Marcoace "Wait a minute. Are you jealous?", requested by anon

It wasn't that Izo was a meddler. Far from it. It was just that Marco and Ace had insisted they were "just friends" for a very long time – yeah, right – and that they didn't want to "tear each other's clothes off – sure.

But tonight, finally, with a little help and encouragement from Izo – like, dressing them up and forcing them into a car – they had gone on their first date. Now they were back home, and after all Izo's work and days of frustration, it was only fair he knew what was going on.

Marco and Ace had immediately gone to Marco's room, which was a good sign. And Izo just happened to be standing near the door, with his ear pressed against the wood. Total coincidence.

"Wait a minute. Are you jealous?" he could hear Marco ask.

Haruta and Thatch passed by in the hallway, but they knew better than to ask Izo what he was doing and merely shrugged.

"Of course I'm jealous. Yours is way bigger than mine!" Ace said with a whiny voice.

Izo let out a silent gasp. Would they be…?

"I don't think it's way bigger," Marco protested.

"It so is!"

"They come in different sizes, that's just the way it is," Marco continued. "You can have a taste of mine."

Wide-eyed, Izo pressed himself harder against the door. This date had gone better than he expected.

"I don't think it'll fit into my mouth," Ace said.

"You don't have to put it all in. You can just lick it." There was a moment of silence. "You like it?"

"Meh, I've had better."

Izo almost facepalmed. Really, Ace? That didn't sound like something you should say the first time. Dammit, Izo had really hoped that they would work out.

"Maybe you should try again."

Izo sighed in relief. Of course Marco wouldn't let one small comment ruin everything. But Ace really had to step up his game.

"Dammit, Ace, don't bite!"

Okay, now they went too far. Izo threw open the door, looking outraged. "That's it! I'm rooting for you guys, but you really have to dial down the kinky stuff, because…" His voice trailed off when he saw Marco and Ace sitting on Marco's bed, fully dressed, and Ace was chewing on something hard.

"Kinky?" Marco asked. "We went to the travelling funfair, like you forced us to, and bought some stick candy." He held up his, part of the top bitten off.

Ace started laughing, clutching at his stomach. "You thought I was biting Marco's–"

"I did no such thing!" Izo called out, trying to sound indignantly, but in reality, he was glad he was wearing make-up, so they couldn't see his bright red cheeks. "I knew what you were talking about. I just wanted to see how your date went."

"It went very well," Marco said with a smile and rose from the bed. "We brought one for you too, as a thank you." He held out a bright pink stick candy, which Izo took stunned.

"Just keep it away from Ace," Marco said with a wink, "or else he might bite in it."