ROYD-305 My older sister is plain and reserved, but when she takes off her glasses, she's an unbelievable beauty. I couldn't resist and made a move on her, and she let me have my first unprotected sex with her, starting with a dry hump and then letting me

My sister-in-law is usually plain and doesn't wear makeup. But I know. I know she's beautiful! I can't help but offer advice to my sister-in-law when she's struggling with interpersonal relationships. This sparks a rapid improvement in her makeup skills, and she gradually gains confidence. Eventually, she transforms into a stunning beauty with an amazing figure that turns heads wherever she goes. But as her brother, I can't keep quiet. One night, when our parents are away, I impulsively confess my feelings...