Yoongi nearly laughs, nearly groans, small noises stifled against Jungkook's lips. He probably shouldn't make digs at Jungkook's ability to stay quiet, he thinks absently. He's the one who can barely hold in the sounds that rise so instinctively. When Jungkook presses against him like that, the friction sending a shudder through him, it takes a considerable amount of Yoongi's willpower to swallow a shaky gasp.

Maybe he doesn't need to worry too much with how many other people are around, not paying attention to anything but themselves, any noise Yoongi makes disappearing under the sound of footsteps and water running and kids babbling away. Still, trying to keep quiet is part of the fun.

Hands sliding down, he pulls Jungkook's hips against his own, rocking back against him. The wall is cool against his back, mercifully sturdy, as Yoongi hooks his fingers in Jungkook's waistband. This isn't what they came here for, but he doesn't care. They'll have time to look at fish and pet sting rays later. Right now, he just wants to let himself get entirely wrapped up in his boyfriend.