Mother's best friend

Apparently, I last met Aki when I was still a baby. He couldn't remember such a thing, and he felt an indescribable embarrassment towards Aki, who would stay at home for a while. That night, I couldn't help but peer intently as I heard a mysterious sound from Aki's bedroom. Aki let out a sad cry, squeezing her small breasts and squealing her pussy intently. Then my mind was filled with fantasies about having sex with Aki...