Sobo no Mitsu Ana ~Aisuru Mago ni Sei no Tehodoki o~

"Happy birthday, Grandma Honami!" "Thank you. I'm so happy." Today is my 60th birthday. My son and his wife, along with my beloved grandson, Hiroshi, are visiting. Watching him grow up and become shy about being spoiled, I can't help but feel a little mischievous. "Hey Hiroshi, do you want to sleep with me today for the first time in a while?" "What?! No, that's fine. I'll sleep alone." Hiroshi is hesitant, but his cheeks are flushed red. Hehe, maybe I was a little too mean. ...Then, a while later. "Honami, why don't you take a bath? Hiroshi might be in first." Apparently, it's okay for me to take a bath with Hiroshi. So, excitedly, I hurried to the bath. Judging by how he'd been acting today, Hiroshi might be embarrassed, but once he was in, that kind boy would forgive me. I headed to the changing room, quietly finished taking off my clothes, and put my hand on the door to the bathroom, ready to open it. But at that moment... I heard the sound of heavy breathing from the other side of the door. I secretly peeked inside, and saw Hiroshi with his hand on the enlarged penis between his legs, moving it back and forth...