it is socially acceptable for a man to be topless in public. Some of the women were asked without advanced knowledge to pose topless with their nipples covered once they got on the shoot while the sponsors stood around watching them. I don't think any of those pictures ended up in the calendar.

It is very possible the women accidentally exposed their nipples to the men in between poses. For a man to feel similar emotions as what the women felt during the shoot, then he probably would have to pose bottomless with his junk strategically covered while people are standing around watching him. Then accidentally expose his junk while changing poses. Assuming what the ladies say is true, then it wouldn't surprise me if the men made lewd comments to them while at the shoot and/or while they were at the night club especially if the women accidentally exposed their nipples during the shoot.