22-year-old Mason Wellans told his mother he had found the cover he had donated and sent a photo of it. Neither the girl nor her boyfriend noticed an important detail giving them details of their violent sex lives.
Naturally, it is the string with which the girl’s friend tied her;
Sexual intercourse, sex or sexual intercourse (intercourse, coitus, rapprochement) is, in the main sense, the penetration (penetration) of the erect penis, and is an easy access for the purpose of sexual pleasure, reproduction, or both.  Also known as vaginal intercourse or vaginal sex  . Other forms of sexual intercourse are anal sex (rectal sex, penis penetration),
oral sex (oral sex, penis penetration into the mouth or penetration of female genitals by mouth), fingering (sexual penetration by fingers)   : The foregoing actions may include two or more individuals solely for the purpose of physical or emotional enjoyment or the establishment of a certain social bond between individuals.  
There are different perceptions about the definition of sexual intercourse or sexual activity  , which in turn influences perceptions about sexual health .