And that is a not a sexy way to start a night of getting on the lucky train by hurling on the lover your with. I think it has a lot to do with the food men eat and if they relieved them selves at the bathroom or not .

Some of that is a mental stigma that what if he pees in my mouth. Having a lover that does that to you and wants to force that on you and you don't want it will cause hesitation the next time when a oral sex blow job is performed.

I do believe it is what the man eats that makes him or potent them if he was not eating that kind of food. sweets like chocolate and ice cream and etc i think makes the sperm less potent because of the sugar content that makes him a sweeter person but still is a nasty thing i would not do that but hey what is good for me might not be good for the next person.

and another thing that makes men potent to having nasty sperm is sea food and oysters that will make any males sperm nasty and to potent.