Back in the 70's I saw my mate(definately str8) with a boner one night and it was a monster.
Over 9" cut a very thick(great pity I wasn't into cock back then), boy would I like to get a hold of it now.
Mind you if I let him fuck me with it I would be walking funny for a few weeks, would also be a mighty stretch to get the monster in my mouth too, sure would love to try though.