Sweet Experiment With My Sugar Daddy

Erin Carter's father needs life-saving surgery, and the one-million deposit is unpaid. Her boyfriend Julian has been sleeping with her best friend Chloe, and he has already sold Erin's fusion research. When Erin confronts them, Chloe pushes her down and tells her out. Julian dismisses her father and the research. Erin goes downstairs at the lab and calls friends to borrow money. No one lends her anything. Lost and with nowhere else to turn, she walks out into the rain and collapses. Alexander brings her back to his home.

He does not lend her money. He offers a deal instead: one year as his exclusive companion, legal needs only, in exchange for funding. He adds a probation clause. Erin accepts. She admits she does not know her way around sex but is a quick learner.

Alexander has been looking for her for fourteen years. Years earlier, in an old house courtyard, he protected ten-year-old Erin from bullies. She called the police on him, and an officer stomped his toy gun. Alexander later looks at that same gun, taped back together. Erin does not remember him.

At Mia's wedding party, Julian and Chloe humiliate Erin in front of the guests. Julian demands she kneel. Vincent, Mia's uncle and the owner of the largest bar in the area with reported mafia connections, intervenes. Alexander wants to kill Julian for what he did to Erin. Erin blocks him, unwilling to let him get blood on his hands because of her. Alexander reads this as Erin still carrying a torch for Julian and tells her to leave. Erin goes to Mia for advice on how to please Alexander.

Later, Erin's four years of experimental data comes back to her. Alexander meets Mr. Sterling of Black Defense Industries about selling a stockpile; Mr. Sterling infers that upgraded products are coming online soon, and Alexander calls it a trade secret. Alexander rebuilds Erin's lab and reclaims what was stolen, but old wounds and hidden identities keep them apart. Julian and the arms dealer plot revenge, and a mafia alliance threatens to separate Erin and Alexander. Alexander rejects the arranged marriage and wages war for love, confessing everything before they sign a new, unconditional contract.