Suzu lives with her sister and her husband. Kind-hearted Suzu suggests to her brother-in-law, who suffers from premature ejaculation, that they use her body to train him to improve his condition. Sweet, melting kisses and nipple play, an awkward but dedicated handjob... Suzu's attractive body makes her brother-in-law's dick reach its limit! Unable to resist his sister-in-law's tight pussy, he ejaculates inside her! Eventually, Suzu becomes addicted to her brother-in-law's dick and starts begging him every day... "You can cum inside me as many times as you want!"