Manipulating Goddess: They All Want to Seduce Me

Kevin once saw his sister-in-law, Sofia, coming out of the bathroom in a short nightgown. Her large, fair, and tender breasts, along with her long, alluring legs and particularly sexy lips, completely captivated him.
From that moment on, Kevin's mind was filled with thoughts of Sofia's beautiful legs and the voluptuous breasts that swayed beneath her nightgown. Every time he made love to his wife, he couldn't help but imagine his sister-in-law.
One day, he couldn't resist any longer and barged in while Sofia was taking a shower. Kevin had expected Sofia to be furious, but to his surprise, she said, "I left the door open on purpose, waiting for you to come in, Kevin. Do you want to try having sex with me and my sister together?"