Interesting how the way that immediate swallowing of semen is acceptable, but that saving it for later in a Pepsi Can is not. Personally I find the whole concept of swallowing semen, be it my own or a partner's, a total turn-off. I sometimes try to make myself swallow my own semen when I'm masturbating, but as soon as I climax the urge to follow through with it disappears & it ends up in the towel I keep for the purpose, as per usual.
I've never seen one that physically couldn't fit in my mouth, but some of the larger ones were kinda hard to get very far in. There's always ways though, like using your hands more, paying more attention to the head of it, etc.
A Friend Of Mine Has One 6" Long, And 6" Circumference.... He Doesn't Get Much Penetrative, Or Oral Sex, Because Very Few Can Take It.... I Had To Laugh A Few Years Ago When He Rang Up All Excited Because He Had Finally Found A Brand Of Condom That Fitted The Beast.... Cheers Glen.