Leo was surprised at the flying bathing suit nearly hitting him in the face as he walked into the bathhouse. He was even more surprised to see Jason and Frank laughing at Percy's red face. Leo turned to Nico.
"Do you have any idea what just happ- What are you doing?!", Leo cut himself off, absolutely stunned by the Italian boy next to him shirking off his boxers.
"We're in Camp Jupiter. Romans bathe naked. When in Rome…", Nico replied with his signature dry tone. He sauntered over to the hot tub to the sound of wolf whistles from his former shipmates, wolf whistles that were quickly shut down with a glare from the son of Hades.
Leo weighed his options. On one hand, he hadn't been seen nude since he was pantsed in fourth grade (and Piper walking in on him in the shower doesn't count). On the other, who was he to spit in the face of tradition? Besides, seeing Nico's taut, lithe body was enough of a motivation. Leo tossed his hole-ridden boxer-briefs behind him and ran to do a cannonball into the hot tub.
Nico glared at the Hispanic boy, pushing wet hair out of his eyes. There were definitely days when Nico considered sending each of his companions to Tartarus and letting his father take a turn of dealing with them. However, the warm water – now inadvertently even warmer thanks to Leo – was doing wonders to calm his rage and instead was soothing him.
"Hey Percy, I didn't know you had a periscope between your legs", Leo laughed. All eyes were immediately on the Son of Poseidon's crotch. Percy indeed had an erection. He blushed and tried to hide it, only for Leo to bat his hands away. What resulted was a quick slap fight between the two, leaving Percy's pole out in the open and accidentally swatted a bit by Leo's hands.
Percy gave up and let his trident stand at attention. He sighed deeply.
"I can't help it. There's something about the water, I can feel it."
"Actually," Jason offered, "It's the air in the bath house. They pump an aphrodisiac aroma into the air. The original idea was that guys would bone up, relieve themselves, and ultimately feel calmer. It's an ancient practice, but clearly one that we haven't given up." Jason gestured down to his own dick, which had been hard since he'd gotten there.
"Does this mean we're all going to be hard soon? Together?" Leo asked. He was confident in his body but wasn't necessarily eager to show it off.
Nico beat Jason to the punch with his encyclopedic knowledge. "Yes, it does. May as well let it happen." Nico was starting to feel the effects himself but decided to accept it and move on.
Moments passed and soon it was obvious that all the boys were hard. There was a bit of ribbing and side-eye comparing until Frank shockingly stood up.
"I'll just say what we're all thinking", Frank bluntly stated, his thick cock swaying to and fro. "We should compare and see who's the biggest."