Staying very relaxed letting your throat and stomach muscles take control of his body. This lets him focus on the continued pleasure  you are giving him. His loud moans of pleasure continue to flow from him as he feels your tongue continue to play with his member. More seed and pre dribbles out and coats your tongue.  His tail knows a good thing when it has found it. It stretches a bit to make sure its able to cover your entire member as it sucks down firmly and slowing drawing back getting every drop of see it can from your member. It continues to stroke back and forth greedily hoping for one more snack.