My big sister is home for the summer and I'm pretty sure I caught her about to masturbate! I've never really touched myself or another girl before so she offers to teach me the basics. She starts me off slow with some kissing. Then she tells me I gotta take all my clothes off! All of them. I was nervous but I couldn't think of a better person to teach me about my naughty bits because we've always been so close; and about to get closer. So I strip down and prepare for the best sister bonding EVER