The lover of a dentist from Colorado, who is on trial for allegedly killing his wife by slowly poisoning her protein shakes, testified on Tuesday, revealing intimate details of their affair.

Dr. Karin Cain, an orthodontist from Texas, appeared in the Aurora trial of Dr. James Toliver Craig, aged 47. He is accused of first-degree murder in connection with the death of his 43-year-old wife, Angela Craig, in March 2023. The cause of death was identified as lethal amounts of cyanide and tetrahydrozoline.

Cain recounted meeting Craig at a dental conference held in Las Vegas in February 2023. At that time, she had recently finalized her divorce after 27 years of marriage and was adjusting to her new life as a single mother to two adult children.

“This was the first man I had a one-on-one convo with in 30 years,” she told the jury.

“It felt exciting, like a high school girl.” Cain said. “It felt like love.”

A prosecutor closed by mentioning Craig’s lies about still being married, still living at home and hiring a prostitute during the initial Las Vegas business trip. 

“Yes,” Cain said, “a lot of what the defendant told me wasn’t true.”

Colorado dentist James Craig, right, is accused of fatally poisoning his wife and the mother of his six children, Angela Craig. (Facebook)

‘Sugar baby’ takes stand

Carrie Hageseth, a Lyft driver and single mother, testified Wednesday that she met Craig on Seeking.com and the pair fell into a “sugar babies” relationship. In a statement to Fox News Digital, a spokesperson for Seeking.com said it is not a “sugar babies” website and it “strictly prohibit(s)” any form of transactional dating.

“Our dating platform helps members build meaningful relationships based on shared ambitions and what truly makes them happy, be it romance, travel, luxury, freedom or whatever it is they aspire to in their connections,” the spokesperson said.

During one dinner, she testified, Craig referenced the movie “The Purge,” in which there is one day when everyone can kill whomever they want without consequence.

Craig, she testified, said that if he could “purge” someone, it would be his wife. 

He went into detail, Hageseth testified, describing how a person could be killed via injection without consequence.

Hageseth went into the intimate details of their “arrangement,” sharing that Craig paid for her daughter’s car in exchange for sex.

Fox News Digital has reached out to James Craig’s lead attorney, Lisa Fine Moses, for comment.