In my limited experience I have to admit that at first, when she wanted to swallow, I did retract by the very last moment, I don't know why but I did.
She then menage to get a drop or so on her lips when I was climaxing on bj and it was very very arousing, she did lick it and then lick her lips and, wow, was that a turn on!!!
Most of the times it was on her breasts and to see them all splattered was a turn on too, sometimes she did grab a boob to pull towards her mouth and lick semen out of her nipples, needless to say that was quite arousing too!
Another one only wanted to get it into her vagina, nice but not that fun, I liked to see it coming out of her but no way she ever wanted or asked to do it elsewhere.
Another experience was the facial, honestly same as the first one, retracting last moment and doing it on her breast but once done I liked it and she seemed to like it, she also said she found it good for her skin and used to do it quite often before going to sleep.
It came a time in which she wanted it like rain, she lying and asking me to stand and to do it on all of her body, visually very nice. Same when pulling out from behind and doing it on her back or cheeks, it was amazing to see it dropping down her lips.
I don't know if the cumming on face, swallowing or such stuff is only a male fetish or if there are women who they do like it besides just giving their man pleasure, I think porn does have big influence on us, at least on us men.