SPRD-1442 - Mother seduced, first time creampie by son

*I wonder if Yukie has the constitution that once she cums, it becomes easier to feel her vagina and she ends up cumming again and again. In the actual scene with her son after she masturbated, Yukie masturbated with her own hands while her son fingered her and inserted his fingers, her son played with her nipples, and she came to orgasm many times just with foreplay and cunnilingus from her son. Yukie has such a naughty sensitivity that once she cums, she cums many times just with foreplay.