I don't have much experience with women, but I really want to see a woman's genitals! With that in mind, I sneak into my sleeping sister's room, pull down her panties, and admire her raw pussy! Of course I get an erection! I want to put it in, but I can only rub it against her... but she starts moving her hips and I end up inserting it into her wet pussy! And then, she continues to pretend to be asleep, and I end up cumming inside her!