Sankaku Channel/leg hug

Usually referred to as the fetal position when hugging all 2 legs at tha same time with their own knees on chest while sitting up or laid back most times but not if the hug is applied to a single leg though!
Cases that involve more than 1 person is used to describe when 1 or 2 people are hugging the leg(s) of someone else or when 1 person wraps their legs around tha waist of another which is most prominent in a setting that suggests sex is or about to take place!