My girlfriend and I share a room together, and her best friend has huge boobs! And she's really lewd! Whenever I go to her house to hang out, she always sneaks around trying to seduce me and beg me to have sex with her without her noticing! And she's OK with raw sex! She's OK with cumming inside me! She's a forbidden partner that I shouldn't have sex with, but when a woman like this tempts me, I can't resist! Kokoro of immorality and guilt become arousing factors during sex, making me feel even more erotic!