An adult role-play. I never knew my beautiful sister-in-law Airi went around the house without a bra or panties until I moved in with my brother and his wife. Her stiff nipples, thick pubic hair, and constant glimpses of pussy finally became too much, and I fucked her while my brother was away. Since that day, we have used every moment behind his back to have sex and creampie. I blame Airi for constantly tempting me in clothes that make her so easy to fuck.