GIVING IT SOME HAMMER!
The woman then sucks “Martin’s” stiffening cock before yielding to an act known as “fisting”.
There follows a few minutes of straight sex before the lady splays her ample bum cheeks and invites anal penetration – which is duly performed.
The scene finishes with the German gentleman hosing a large amount of sticky white love piss all over his companion.
However, after thorough investigation, Sunday Sport can reveal the hunk in the vid is NOT Martin Roberts.
Video analyst Dr Fred Sandbach of the University of West Lancashire said: “I have examined the video and there are several factors which show me this man is not TV’s Martin Roberts.
“Firstly, I doubt very much that Martin Roberts speaks German as fluently as the man in this video.
“And also, and I have this on very good authority – Martin has a much bigger cock than this male.” DRY GROT: Kraut stud gets his knob wet ( left) before ‘ fisting’ lady friend ( top) DOPPELGANGER: Adult movie fans reckon porn actor looks like Martin