During puberty, a boy's erect penis becomes capable of ejaculating semen and impregnating a female. One common feature noticed is that the phallus is always seen ejaculating. The viewer identifies with the ejaculating men, experiencing a sense of vicarious pleasure. They finish in the missionary position with Mr. Greenfield pulling out right before ejaculating. The film closes with Rob's grisly suicide, in which he stabs himself while ejaculating. He eventually turned to her ten-month-old cub, repeatedly mounting and ejaculating on it. For the ejaculating partner there is almost no risk of contracting an STI. For the ejaculating partner there is almost no risk of contracting an STD. The 2007 ICD-10 defined PE as ejaculating without control, and within around 15 seconds. It is common to refer to the practice involving ejaculating on a photo as "facepainting".