Ruined Orgasm for Bro

Miss Lydia has transformed her brother into her slave and put him through his paces. Now it is time for his reward: He gets to cum at sis's hand! Lydia takes her time giving him a hand job, as he confesses he has always wanted to be dominated by her; which of course, she knew all along. Bro is surprised that Lydia even gives him a blow job, and works very hard to satisfy him. Is this too good to be true? Indeed! As he is about to cum, oops- sis removes her hand, and bro experiences his first ruined orgasm.