A little while after moving in with the other Arcobaleno, Skull and Fon had become the secret pranksters. The rest of the group always suspected the cloud but never the storm so they only had to say they were doing something together at the time of the crime and they had the perfect alibi.
For their most recent prank, they put pictures of alpacas everywhere in Colonello's room when he was away on a mission. When he found out, he got pissed (mostly because absolutely everything was covered).
The rain stormed into the common area and lifted his hand to show one of the larger alpaca cut-outs. Great, the Prank Team had just gotten comfortable and they already had to deal with Colonello's screaming (it was kind of worth it, though).
"Who the hell covered my room in llamas?!"He seemed to already have someone in mind because he whipped around to face Skull, who was looking a little too innocent sitting there, in Colonello's opinion.
Skull shook his head and carefully hid a smirk, "Wasn't me. I was out shopping for groceries with Fon since Viper had something to do." He also wanted to inform the idiot rain that they weren't llamas, they were alpacas (yes, there was a difference). He decided against it.
Colonello first looked toward Viper for conformation- they nodded- then towards Fon- he nodded as well.
It was partially true, they did go to the store to pick up groceries for the week, but they had done that the day before. The only reason this worked was because Viper was a part of the Prank Team. They were a huge help, being a mist and all. The three had had put the alpacas up in the middle of the night, so they're illusions weren't needed that time (they had pulled all-nighters before, so they weren't tired).
The storm hid his smirk behind his sleeve, "I can show you the receipt if you would like." Colonello sighed, calming down, and started walking back to his room.
"No, I believe you." He opened his door, took a deep breath- "When I find whoever did this, I'm going to murder them."- and slammed it closed.
Okay, so maybe he wasn't calming down.
It didn't help that he probably heard Reborn laughing at his misery.
...
While everyone's ears were still ringing from the door slam (and Reborn's laughing), the three pranksters turned towards each other and let their smirks show. Skull and Fon took it a step farther and high-fived. Total success!
That little slap brought everyone back to reality, but only one person actually saw it.
Lal Mirch.
What she saw raised red flags in her mind. Mostly about them putting the alpacas up in Colonello's room, but also about them being suspiciously close. Fon was usually pretty closed off, even with his Family, and it was weird that he was interacting with Skull the most, out of all people.
Those flags waved frantically when Skull blew Fon a kiss and he returned with the same amount of enthusiasm. Double weird. Fon was the Eye of the Storm, always calm, and Skull was the exact opposite.
And suddenly Lal's mind-world aligned and it clicked, they were together. Everything made so much sense now!
Now that she had figured it out, she was going to mess with them (she was still kind of mad (and embarrassed) about Skull telling everyone about her date).
Good luck to those two. There was no telling what she would come up with.
...
After an hour or so, Lal excused herself and went to the "store" to pick up supplies. People gave her weird looks, but she didn't pay them any attention. She was having too much fun imagining their reactions.
They would probably be embarrassed and maybe excited... if she was correct about them being a couple (which she was, she just didn't know that yet). Just in case, she decided to leave their names off of the gift she was going to leave them (she was pretty sure she was correct, though)
If she was right, she was gong to tease them for a very long time after this.
...
After dinner, the lovebirds headed back to Skull's room (they secretly shared it) and were surprised to see a gift bag on their desk.
Skull started to approach it first, eyebrows pulled together in confusion and caution. He was worried Colonello had discovered he was the one to put the alpacas everywhere and this was his way of trying to get back at him (it was Skull's room to the rest of the Arcobaleno so it made the most sense).
Fon was thinking the same thing, so, being the protective boyfriend he was, he quickly moved in front of Skull and inspected and inspected the bag with his eyes, finding nothing threatening. That let him relax a bit.
Skull stepped around him and picked up the note beside the bag. "Wait a second." He flipped the piece of paper over and was greeted by Lal's handwriting. "It's from Lal-senpai. I guess we shouldn't be too scared for our lives, then," he chuckled nervously, trying to lighten the mood. Fon smiled so it worked at leas a little.
"It says," he cleared his throat, adjusting his voice so it sounded like Lal's, "'I hope you enjoy, boys. Remember to use them wisely.'"He turned to look at Fon, "I wonder what she means by that."
The storm looked almost as confused as he did, which was really saying something.
Fon looked at the bag and said, "I guess there's only one way to find out." He looked back at his cloud, who nodded.
The cloud took out the tissue paper and peered inside, immediately blushing a violent shade of red. That didn't make Fon feel any better about the situation, only worried and even more confused.
He stepped forward and looked inside, then doing the same thing as Skull did (but he didn't turn as red). He recovered faster, though, and trapped Skull against the desk, making his fading blush come back full force (maybe a brighter shade, if that was possible).
The storm smirked, "Lal Mirch went through the trouble of getting those for us, we might as well use them."
They were going to have a lot of fun with the lube, condoms, and ties Lal had gotten for them.
...
When Skull limped into the common area the next morning with a smug Fon trailing behind him and Lal half-smiled/half-smirked, everyone who didn't know about the two (and Uni, she was too innocent) were really confused.
Especially when Fon thanked her and Skull's face erupted into a thousand shades of red.
Looks like Lal was right in thinking they were a couple.