Sam was so relieved to hear his sister tell Johnny that he could do things besides suck cock! He would have given her a grateful and loving look but at the moment he was too busy trying not to choke! This cock felt huge, so huge stretching his lips out just to the point that it was almost painful. There was no way! He would have to give up, not only on getting there but also on getting his own little cock touched! He squirmed his hips back and forth, looking a bit like a puppy wagging its tail as he sucked on that big dick on his worst enemy!<br/><br/>But then a light touch from his sister changed everything. It was almost as though that soft touch on the back of his hair made his throat relax, Johnny slip in a little further without resistance and Sam was able to shove his face more and more forward until he started to choke again. He was almost gagging, his nostrils flaring as he desperately sucked down enough air to keep conscious, feeling as though he might pass out any moment, but he wasn't going to let his sister down!<br/><br/>Closer, closer to the end he went, barely doing more than sucking with his taut lips, tongue smooshed to the side to do more than just cradle Johnny's shaft and curl around it lightly, the shaking of the back of his throat doing all the work now. He glanced up at Johnny, hoping that he approved, knowing how much it would mean to his sister even if his own feelings about it were much more mixed.<br/><br/>He moaned into the blowjob and forced himself forward, further, further, he was so close!! He hoped Clarissa was ready to start touching him! He really needed it!