It's been a week since Kenji saw his wife off to give birth. Kenji was at his wit's end in his cluttered room when his sister-in-law Rino came to look after him. Kenji was happy to welcome her back, but something about Rino seemed a bit off. She was overflowing with sex appeal and a provocative deep cleavage. He couldn't resist the temptation of her breasts and hurriedly tried to hide his erection, but it was too late... "No one will ever find out, so let's do it right here," she said, forcing him to suck his cock...