Good boy, Cain thinks to himself as Abel's hand slides into his hair. Getting involved is always a good sign and Cain rewards him by undoing his pants and yanking them down. He tilts his head a little and nips at Abel's balls, then runs his tongue over the length of his cock before tugging his briefs down like he's opening a present.

He doesn't wait for protest or sound of approval, his mouth circles right about Abel's cock, tongue running along the slit before he slides his lips down.