Worried about her brother suffering from premature ejaculation, his sister... Unexpectedly engages him in a desensitization training! Handjob, fellatio, and even insertion! If he keeps delaying his orgasm right before he comes, his dick won't stand it! His sister, repeatedly brought to the brink by her brother who endlessly pistons without coming, can't take it anymore and flees! But he chases her around... They end up having sex all over the house, climaxing repeatedly!! "Thanks to you, sis, I've become a dick that can satisfy a woman."
