Futago no Toriko ~Koisuru Idol~

Tetsushi Takashima (name changeable), a producer for a recently debuted idol duo, is riding high after their latest single tops the charts. Feeling generous, he makes a careless promise: “I’ll grant any wish you have!”
He still thinks of the idols as kids, but they’ve grown into full-fledged women.
“Give us the right to do whatever we want with you, Producer,” they say, and soon, they’re using every trick in the book to serve him in ways he never expected.

[Translated from dlsite]