[B/S] Sis was in between boyfriends and asked for a favor. She was a little shy about it because she'd been unkempt, but I was happy to help, and, as her brother, I didn't care how well groomed she was
Sis really wanted to get better at sucking dick for her boyfriend. Since i’m bigger than him, I offered to help her practice. Now she never misses the opportunity to get better. Even when we’re at school she meets me in the bathroom and gets on her knees
