When I returned home after a long time, I found out that my older sister was a popular hard worker outside, but at home she was a widow in her 30s who wore loose loungewear. At first, I was disillusioned by her changed appearance, but when I saw her walking around with her ass half-naked and scratching it, I suddenly got an erection and couldn't resist inserting myself and cumming inside her. Once we did it, I couldn't stop and we had sex over and over again, and my sister's sexual desire was ignited as well...