Probably Confined With Goddesses. It's mostly just moans but the audio clips are a decent length before they loop.
Love and Sex Second Base does have some voice acting but honestly because the male protagonist is voiced I usually just mute the audio track. It can get tiring hearing them say "I work a little" every time you try to earn money.
also what questions or game would you like to be coverd next?
Maybe what game has the best music. I normally mute games as soon as I start playing them but some have some genuinely good music. I wonder what games I was too quick to judge