Une belle-sœur couche avec l’ami de son beau-frère

His friend came to the house with the brother-in-law, when the brother-in-law asked to make tea, the sister-in-law sent him out to bring tea leaves, seeing the opportunity, the brother-in-law's friend started flirting with the sister-in-law and in a short time he convinced the sister-in-law to have sex.