This is from a Surge Studios spread in the July 1981 issue of Numbers – called Basic Plumbing. I’m pretty sure that is Al Parker’s arm helping out (somehow); speaking of Surge Studios – arrrrgggghhhh – why are BOTH links at my Mr. Parker post from 2014 broken??? arrrrgghhhh
tip: SAVE EVERYTHING!
photographer Joe Tiffenbach; Al Parker and Paul Underwood (who, under that name, doesn’t seem to have done any porn film work). It’s actually quite an extensive photospread – 23 pages – I just haven’t scanned the magazine yet, and alas, the quality of the print isn’t so great, which is not unusual for Numbers Magazine. Also of note, you see Al’s partner Steve Taylor later in the spread, so I think the cock in this pic may well be his.