Your little brother squirms under you as you suckle his sweet little cock. You can see his tummy, still a little pudgy with baby fat, tense and flex as he nears the edge.

Suddenly he lets out a moan in his adorable boyish voice, and he grabs your head as he starts to thrust into your throat. Nothing comes out, he's not old enough for that yet, but you can tell from the way his dick throbs in your mouth that he's really trying.

Finally he slumps down, exhausted. You look up to see him laying there, his chest heaving and a sloppy, dazed grin on his face.

"That felt so good," he says foggily You can hear the relief in his voice, he really needed that. "Thank you."