Jackson gingerly rolls the rubber over himself, careful not to tear it by accident. He slicks himself up liberally and positions himself. Once he gets the signal, a haste nod from Mark, he slides in.

"Ugh, so tight." The younger groans under his breath, "Completely me in. Mark."

 Like gravity pulling him down, Jackson sinks in rapidly and bottoms out with a guttoral growl.

Mark drops onto all fours to steady himself and tilts his head back to regard his boyfriend. "Babe? Are you in yet?"

"Yeah," Jackson's grip on Mark's hips tightens as he struggles to control himself. It's so incredibly tight, squeezing him from all around, and he's not going to last much longer. He's going to blow soon. Without warning his knees buckle and he falls forward onto Mark, sandwiching the elder between the ground and himself. Mark does an immediate faceplant into the mud from the force, and when he pulls his head up his features are squeezed shut with a layer of murky brown spread over his skin. "!"

"God damn it, Jackson!" Mark manages to curse around the thick mud caking his lips. "Get off me! You're heavy as !"

"I'm sorry!" Jackson cries. "I lost my balance, okay! My damn rubber boots got stuck and I couldn't pull my foot out. Whoever the was who suggested coming to the mudflat for 'team bonding activities', you better sleep with one eye open tonight."

'That would be me," Jae Bum calls out from the other end of the mudflat. His entire self, from his overalls to the exposed skin, is covered in thick mud and his hair too has turned greyish brown. He looks worse for the wear.

Jackson blinks. "Hyung, you look like a mudflat monster."