VOSS-054 My son's bratty girlfriend who always treats me like an old lady. I secretly try to seduce her and turn her into a lesbian, but she turns out to be surprisingly cute and I end up falling for her! My son watches the whole thing, his dick rock hard

The son brings his girlfriend home. A feeling akin to jealousy towards her swells within Yumi day by day. Moreover, the son's girlfriend constantly calls Yumi 'auntie,' and this bitchy little girl makes Yumi furious. Yumi possesses an exceptional lesbian skill that can captivate such a girl in an instant. And the son, who shares Yumi's blood, also has a perverted desire that easily transcends morality... When Yumi's irritation and lust explode, it will develop into a chaotic love triangle!