I secretly added an aphrodisiac to my sister-in-law's drink, causing her to become extremely aroused, and then I impregnated her unsatisfied body. (An Weixun ADN-693)

To find a job, I agreed to stay at my brother's house for a month. My sister-in-law, Kaoru, seemed to look down on me, but I kept looking at her with lustful eyes. I wanted to have sex with her no matter what. I bought an aphrodisiac online and secretly added it to her drink. As time went on, Kaoru's behavior became increasingly strange. The aphrodisiac was really effective.