Jack picked up his empty water glass from his bedside table, then dropped Bryan into it, face down. Bryan's naked butt was sticking up as he tried to rearrange himself inside the cup. Jack put the cup between his legs, and resumed stroking his 4-inch dick.
Bryan could feel drops of precum splashing on him. Jack's giant face was red from exertion. Bryan was stuck, and he knew how this would end.
Jack aimed his dick down into the glass right before it exploded, shooting 13-year-old cum onto his exposed body. It rolled down Bryan's body, covering his front, coating his face. Bryan wiped it away as best he could, but it was stinging his eyes.
Jack, panting very loudly, grabbed his phone and snapped pictures of Bryan wiping the cum away.
"That was so good, boyfriend," said Jack, smiling in delight.
"That's gross! You're sick!" Bryan sounded angry to his own ears, but Jack just giggled.
Jack pulled Bryan out of the glass, and set him back in the lizard cage.
"At least wash me off or something!" Bryan shouted.
"No, I want you to get used to my cum," said Jack. "We're boyfriends now and boyfriends always lick each other's stuff."
Bryan groaned, but decided to shut up. Jack would have to get bored eventually, and that would give Bryan a chance to escape. Somehow.
When Jack went to sleep, Bryan tried to find a way out.