this is the yuri equiv of those really old guys that have young girlfriends because they are rich.
????? Where are you getting the idea of compensated dating from? You're saying this as if the younger one is first person to ever have a thing for grannies. Even amano shuninta wrote about it.
Gerontophilyuri...Internet is amazing...
Now, I think I will read something from Morishima Akiko or Nekomura, just to stop the blood gushing from my eyes...