"~4 days of love with you~" While my husband is away... Forbidden cousin lesbian

Reiko and Nanako once had physical relationships. But now they are married and never see each other. One day, Nanako visits Reiko, whose husband is on a business trip... Reiko gently refuses, but Nanako, who was sought for the endless pleasure between women, approaches her and once again enjoys the pleasure of a lesbian. Even though she knows it's not good, Reiko remembers the pleasure that a man can't experience every time she matches her skin with Nanako...