While napping, I felt a gentle sway across my body. It was a soft, warm sensation spreading over my face, trembling slightly with a jiggly vibration. Still half-asleep, I innocently shouted out, "Ah~ Earthquake! Earthquake!!" I felt embarrassed even at my own reaction, but when I opened my eyes, I saw two pink dots right before me. The source of the movement was my sister's large breasts. Her nipples were erect, soft yet firm, and instantly my cock sprang to life. To be honest, I'd always had the urge to ravish my sister. Feeling this was my chance while she was drowsy, I aggressively pounced on her. If anything happened later, I could just say it was a dream. That would be fine. I spread her legs, sucked greedily on her pussy, and stirred inside with my fingers. Her love juice gushed out, soaking my hand. She grabbed my hard cock and rubbed it between her soft tits, warming it up before guiding it into her wet slit. The way she massaged my shaft felt incredibly good, moaning softly with each movement. At that moment, I deeply thought, "My sister! You've grown so big!" Here's to my sister's growth!!