When I went to my girlfriend's house for the first time, the person who was there was my girlfriend's older sister (eldest daughter) who was extremely beautiful and had a naughty atmosphere. Such an older sister opens her legs and shows me her panties. This... clearly seems to be trying to tempt me. And even though she was nearby, I started playing with my excited dick so that she wouldn't find out, until I ejaculated! ! Did this slutty lady with beautiful legs and a lot of experience like me?