Kinky twins in a threesome who want to be filled.

More than sisters they were best friends, so when one of them confessed to being attracted to her mother's new husband, the other helped her fulfill her fantasy. They convinced their mother to go out and buy them groceries, while she snuck off to her room and dropped the bombshell on him. Just as he expected, he didn't make himself begging and as they began to kiss they were interrupted by his sister. He didn't seem to mind and his sister, although a bit annoyed for not having him all to herself, accepted her in their trio of perversion and pleasure.