FSDSS-059 I was made to ejaculate 11 times in two days and three nights by my wife's insatiable sister

My friend's wedding brought me back to my hometown for the first time in a while, and my sister-in-law Moe-chan was there too! She stayed at our place for two nights and three days. For some reason, she attacked me because she had recently broken up with her boyfriend! Once I gave in to temptation, there was no turning back! After that, whenever my wife wasn't looking, she would constantly demand my dick! I ended up having 11 loads of sperm extracted from me!