The big-breasted sister who got stood up on a date. When I secretly peeked into her room, she was seriously masturbating to release her pent-up sexual desire. Seeing that, I got a full hard-on. Masturbation alone is too lonely! I have to make her feel good with my dick…! I thought, and rushed into the room to rub my dick on my sister's wet panties! "No! The tip is already in..." I did bare penetration through her panties, and her heated pussy started to get wet, so I immediately went "plop" and inserted it raw! I came inside my sister multiple times after inserting it into her sensitive pussy, which was made more sensitive by masturbation and frottage, causing her to climax immediately!
