Not the daddies she expected

Warning This book contains explicit and matured BDSM/Erotica content.
Married, sex-deprived Anna didn't expect that her sexual fantasies will be fulfilled to the peak when she decided to accept the invite of the Twins sibling she met on Tumblr, until she got to their mansion and she was caged and prisoned after signing a legal consensual form.
“Why did you accept our invite? Tell us again, ” Jacob asked Anna as he slapped her already, red swollen cheek.
“Because I want you guys to treat me like a sex slave, ” Anna gulped.