Along the crests on his head and arms were pulsing blue lights, bioluminescent stripes that were bright enough to light up the tunnel. Kittisak didn’t have long to appreciate how beautiful it was, however.

Shu gargled something that sounded particularly annoyed, grabbed a hold of Kittisak, and then dragged him back to shore with alarming speed.

After another meal, it was nap time again.

The pain Kittisak had suffered was nothing but a horrible memory, though he was still weak. The tiniest bit of physical effort exhausted him, and it was relatively easy for Shu to deter his escape attempts.

Kittisak managed to make it several yards into the tunnel once. He’d gone so far that he was actually worried about drowning because he would soon hit the point of no return. The glowing mushrooms didn’t grow down here, and it was hard to swim around in total darkness. The tunnel had many twists and turns, and he constantly bumped his head as he tried to navigate through. He saw light though, and he swam toward it as fast as he could…

Only to find he’d turned himself around and had swum back to the damn cave.

Fuck.

Kittisak was beginning to think that he’d never be able to leave. He was trapped here as this monster’s prisoner, and there was absolutely nothing he could do. His heart hurt to think that he might not see his parents again and that all of their dreams for his bright future were going to be extinguished in this dank cave.

He had no idea how long he’d been here, and the mushrooms were the only thing he could use to measure time. He’d noticed that they seemed to glow more blue when it was usually time to sleep and then more purple when he and Shu were awake. His best guess was that he’d been gone for at least a week.

A quick count on his fingers determined that would make today the eighth day he hadn’t been able to jerk off.

Yes, it was a base and silly thing to be upset about, but he was stuck in close quarters with a monster he found very attractive, a monster who was naked all the time and really loved to snuggle him. He was stressed out of his mind, and he desperately wanted some kind of relief. He couldn’t do it when he first woke up because Shu would always wake as soon as he started moving.

He’d tried once or twice when Shu left to get food, but he had the worst time getting himself to relax. The tension of not knowing when Shu might return made it almost impossible to push himself over the edge, and he’d have to stop when Shu inevitably came back. All Kittisak did was eat, nap, eat some more, and then sleep.

Hours were blurring together, and he really, really wanted to get off.

After a long restless night, Kittisak woke up hard and frustrated, squinting against the mushroom’s glow. He could tell it was early because they were still blue, though a few were turning blue-violet to signal that daytime was likely on its way.

He was stretched out on his side with Shu’s arms wrapped around his middle. Shu was behind him with his face snuggled into the crook of Kittisak’s shoulder, and Kittisak could feel his breath tickling his neck. Hesitantly, Kittisak slid his hand down to palm himself through his boxers.

Shu didn’t move.

Kittisak had never woken up this early before.

Maybe there was a chance…

Fuck it.

He needed to come or he was going to go insane.

The aggravation of being held prisoner here for days and days was maddening. He had no privacy, no freedom, and there was zero way to work out any of the building tension. Swimming laps around the pool only exhausted him, and he needed something to relieve his frustrations.

He took a slow breath, slipping his hand inside his boxers to grab his cock. The mere touch of his fingers made his body clench up, and he bit his lip to stifle a moan. He’d never been a very vocal person during sex, but right now he was ready to howl like a porn star. He knew he had to be quick, and he immediately stroked, curling his thumb over the head of his dick.

Shu’s breathing hadn’t changed, and he remained asleep for now.

Kittisak kept pumping into his fist, focusing on the heat simmering inside of him and the throb of his balls urging him to find completion. He wanted it so badly, and he closed his eyes, stroking faster and faster. There was an added thrill of jerking off while being in Shu’s arms, as if he was doing something naughty and trying to avoid getting caught. He didn’t know what he’d do if Shu woke up.

Keep going?

Ask him to help?

Oh, fuck.

The thought of Shu’s clawed fingers teasing over his cock made Kittisak come, and he panted softly as he spilled his load over his fingers. His body was flooded with sweet warmth, and he sagged against Shu’s chest, still stroking himself slowly to milk out every last drop. He stuck his other hand down in his boxers to squeeze his balls, gently massaging out the lingering ache.

He’d come fast, and fuck, it had felt good, but he could already feel the throb in his dick to get another.

Kittisak couldn’t usually come back-to-back, not since he was a teenager. Every once in a while, he’d come super quick like this and then he could bust again with some extra work—like maybe a toy or two helping him along.