Busty and alluring, showing off her panties - Riko Honda WANZ-277

Having become a working professional, I came to Tokyo for an internship. My uncle, a relative, is taking care of me there. Looking at my cousin Riko, whom I haven't seen in a long time, I see she's both lecherous and adorable. She doesn't care at all about showing her cleavage, even letting people watch her having sex with her boyfriend. When she eats, she spreads her legs wide, letting everyone see her underwear… Is she defenseless? Or is she trying to seduce me? This makes me feel restless and constantly troubled…