A couple targeted Becky Watts due to their shared dislike of her and planned to use the teenager as their “sexual plaything”, a court heard.

The couple accused of murdering Becky Watts “laughed” as they watched a parody Frozen video about hiding a body, while the teenager’s remains lay in their bathroom, a court heard.

The stepbrother of Becky Watts sobbed uncontrollably as he recounted how he killed the teenager after trying to force her into a suitcase during a kidnap attempt.