For me? it really doesnt. But, I think it might have something to do with acceptance. Ya know someone in our lives have treated our ejuaculate like it was something nasty. I think the idea of a woman who not only thinks its A-Ok but enjoys it enough to smile while its getting blasted in her eye is attractive to some men
That's just a guess tho I'm not really a psychologist here. IT never really made a difference to me. I'd rather see a girl swallow than wear it :p or hell if it makes her uncomfortable spit it out :p