It's one thing for your parents to walk in on you doing the nasty. But it's another if they catch you getting it on with your Boy Scout den mother.

Instead of teaching outdoor skills like starting a campfire or pitching a tent, one female den mother in the St. Louis area has been accused of molesting a teen boy who's involved in her Boy Scout troop. The boy's parents found the two having sex in his bedroom when they got home and immediately called the cops.

The woman hasn't been identified since charges are still pending. The boy's age is unconfirmed, but he is said to be under 18. Charges will most likely be filed today or Wednesday, police said.

Once Boy Scouts of America heard about the incident, they immediately revoked the den mother's membership. "She will never be allowed to participate in Scouting again," Alicia M. Lifrak, the scout executive for the Lewis and Clark Council of the Boy Scouts of America, told BND.com.

Aren't den mothers supposed to protect their kids from vicious cougars?