Masturbation set up: Is the following masturbation set up (see notes below) safe in terms of not resulting in damaged nerves and muscles north of anus and south of scrotum.
Masturbator is sat on front edge of sofa with in easy reach of laptop full of adult entertainment in front of him. He manipulates porn with one hand and manipulates his member with the other.
The concern comes from whether the seating pressure will obstruct the muscles used at orgasm resulting in those muscles tearing.