Alex and Loken were nude in the hot springs.

Suddenly, they heard a noise.

"Mylo?" Alex called.

The cub excetedly run from the forest.

"What are you guys doing?"

"Mylo" Alex said, "we are playing sex. Do you want to join us?"

"Oh, like with the Indulgence?" he asked.

Loken nodded.

Mylo quickly took off his clothes, revealing with deliciously hotness underage body, his tiny sheath and pure pink asshole. He run up to the springs, carefully dipping his paw into the water.

"Ow, it's hot" he said.

"To be expected" Loken threw in.

As soon as he submerged his body, the two men began kissing him. Alex was the first to taste Mylo's tongue, before passing him off to Loken, his massive canine mouth engulfing the child's face.

Withought wasting any time, Alex aligned his penis with Mylo's anus, and pushed in. The cub moaned into Loken's muzzle, and the two disengaged. Loken aligned his own penis with Alex's. Mylo was growing nervous.

"W-will it fit?" he asked.

"A Blackrunner's always does" Alex said.

And indeed Loken shoved his cock up Mylo's ass.

The pressure on the knot from Alex's dick and of them both on Mylo's prostate did it, and the three of them came. As Loken's knot imprisoned both cocks inside the cub's ass, Mylo's belly expanded as it was full from both men's cum. This had him horny again, and he masturbated, another dry orgasm leaving nothing the in spring waters.

"This was fun!" Mylo exclaimed.

Loken nodded, and the three kept having sex all day long.