Kids, yes - Scientology, NO! That's the advice Jennifer Lopez is getting from her worried family after they heard reports the 37-year-old superstar was studying the controversial religion, say sources.

"Jennifer, who's been a Catholic since birth, was told in no uncertain terms by her mother Lupe and other family members that exploring Scientology could backfire on her," a family source told The ENQUIRER.

"They fear Scientology could damage her reputation."

Scientology is considered a cult by some, and its followers believe the religion was founded by a space alien.

"Not that her family doesn't respect others' beliefs, but they think Scientology goes against their core religious faith. Her mom told her that the Church of Scientology would love to have her as a member because they could use the publicity to recruit new followers," said the source.

Pick up this week's ENQUIRER for more details!