A Houston couple has come under fire for exposing their two young children to their drug-filled swinger lifestyle and even allegedly offering their six-year-old daughter for sex.

Andra Rae Martinez, 43, and Juan Martinez III, 44, have been charged with endangering a child. Juan Martinez encouraged random men via online ads to have sex with his wife at their home while the kids were there. Police also said that porn, marijuana, meth, and various pieces of drug paraphernalia were left on tables near children’s toys and easily accessible to them. Andra later admitted that the meth belonged to her.

On one occasion, Juan Martinez allegedly offered the 6-year-old girl to a man for sexual activity. Both parents denied having a sexual interest in children, although Juan Martinez admitted to “fantasies” about incest. Both children denied being victims of sexual abuse, but the 10-year-old said he was worried about the father getting into trouble for “smoking things that aren’t legal.” Juan Martinez’s bond was set at $30,000, while Andra’s was set at $2,000.

An even more high profile case involving drugs and sexual abuse of children made headlines in late 2013, while Lostprophets frontman Ian Watkins pleaded guilty to a series of shocking child sex crimes that included the attempted rape of two babies.

Two mothers identified as Woman A and Woman B received 14 and 17 years behind bars for giving their babies to Watkins to be sexually abused. Watkins received 35 years for his crimes. He later claimed to have no recollection of his actions and blamed them on a crystal meth addiction, but that argument was shut down by medical experts.

“In my experience, I have never met a child abuser who has been made one via their drug-taking,” said Nottingham Trent University senior psychology lecturer Serena Simmons. "They usually have a long history of abuse or attempted abuse towards children. Looking at his background and analyzing his life over a number of years will be key to establishing where he developed this unhealthy attraction.”