The girlfriend of my son, who often comes to play at our house recently. She's extremely cute and I was a bit curious about her. Accidentally witnessing the two's abnormal SEX... Seeing her being so harshly penetrated anally like that... Ever since then, that incident just won't leave my mind. Then, one day when my son was out, she came by and confronted me about spying on her, and ended up pushing me down...