Defrosting the sister-in-law...

James' sister-in-law, Elaine, was not unattractive. Indeed, she had quite a good body as far as one could tell. But she hadn't had cock for over six years. James wasn't sure why. He figured it was a mix of, firstly, her being unbearable to be with socially so didn't seem to keep men long enough to get them onto bed and, secondly, her being too prudish to consider taking a man to bed before getting to know him. A bit of a Catch 22 in her case. As it was, James' wife figured that her sister was probably gagging for cock but had such strong will power as to keep her desire suppressed.

Now there was a challenge. Add to it the illicit nature of having another woman behind his wife's back... Add further the thrill of that other woman being her sister... He figured that getting Elaine to the point of release where she allowed herself to indulge her sex, would be an explosive moment.

So he made his resolution... to have both sisters. His ultimate achievement would be to sit down to a family dinner with the sisters and their parents, with both their pussies filled with his fresh cum that very morning.