Indentured Sex Slaves

My mom abandoned me when I was in middle school. My father, a hard-working man, receives a large fortune from an unexpected coin investment and becomes a lackey.
But my mother gambles away all her money on her new husband’s gambling, mortgages the house, and loan sharks come calling.
Then she reaches out to me again. I’ll take her in. In exchange, all three mothers and daughters will become sex slaves.