ADN-588 Allowed to Insert for 10 Seconds, My Stepfather and I Reached Ecstasy Due to Perfect Compatibility. Tsukino Suiei
My father-in-law, widowed and unable to swallow food, I wanted to do anything for him. But... I never expected him to say something like that... "You'll do anything for me, right? Just 10 seconds... please let me insert myself."