Married woman cuckold tied up

Makoto, a husband who is close to each other, and his wife Reiko, are probably due to their late marriage. Makoto invited his colleagues Oki and Kudo to the house, drank and boasted about his beautiful Reiko. One day, as usual, Makoto gets drunk and falls asleep while drinking with his colleagues. Then suddenly Oki tied Reiko with a rope and raped her beside Makoto. Then Oki comes while Makoto is away and ties up Reiko and plays with him. And even more, he invites Kudo to see Makoto return home with Reiko, who looks obscene...