Boy (3) and girl (4) face adoption after watching parents 'sexual activity' and 'emulating them'
A four-year-old girl and her three-year-old brother face adoption after concerns were raised that they had watched their parents engage in "sexual activities" and were "inappropriately emulating" them.
The children had been placed in foster care after a family court judge concluded that their mother had "deliberately" injured them.
And foster carers had then noted that the youngsters began to "act and say things of a very sexualised kind".
Detail has emerged in a ruling by a High Court judge following a hearing in the Family Division of the High Court in London.
Mr Justice Holman outlined behaviour displayed by both children.
He said it included the little boy "climbing upon his sister and simulating sexual activity".
"The children began, after they were placed with foster families, to act and say things of a very sexualised kind," said Mr Justice Holman in the ruling.
"There was no allegation that either of the parents had themselves directly sexually abused either of their children.
"Rather, the allegation was that the parents had been so careless and neglectful in their own personal sexual activities that their children had observed their sexual activities and were very inappropriately emulating or copying them."
He said the children's parents had "completely denied" the allegation.