That was rather daring for the 1950s, especially showing his private parts and their pubic hairs. As for the sexual act, I don't think that was allowed either.
A (sex)life long lover of rubbers, condoms or johnnies, I've tried plain (with teat and without), ribbed, dotted, ribbed AND dotted, flavoured, ticklers, all types, rubber or natural lambskin, but never used 'fish skin' to catch my spurts!! https://xhamster.com/posts/818925
Seeing this Stud in His JOCKEY Shorts, with His Boner making His Jockeys stick out and you can see the Pubic Hair on His Balls!!! PRICELESS!!!!!!!!!!!!!!!!!!
PRICELESS!!!!!!!!!!!!!!!!!!