MIAA-783: My boyfriend's middle-aged father's cunnilingus technique is spot on. Frustrated that my boyfriend wouldn't perform cunnilingus, I discussed it with his father, and to my surprise, he started doing it right then and there... It felt so good that we ended up having sex. Unexpectedly, we were so compatible that we kept cheating and he kept ejaculating inside me multiple times. Arina Niimi.