Even though I'm over 40, I recently started playing basketball, but I had no idea how to practice properly. That's when Eri-chan gave me some advice—though I secretly had ulterior motives. With her huge tits and strong shoulders, she looked so hot during practice. I invited her over to rest at my place, and took the chance to sneak in some naughty fun. When I took off her sports bra, her massive breasts spilled out, bouncing and swaying right in front of me. At first she seemed shy and inexperienced, but once she got turned on, she turned out to be surprisingly slutty. The contrast between her usual personality and her wild side during sex was incredible. Man, teenage skin really is the best.