Why don't you see the shemale cumming in the man's mouth?

[Shemmier]

I don't know if it's just me but I've noticed that there seems to be hardly any pics or vidz on the net where a shemale cums in or on a man's mouth, especially with the man being enthusiastic about it!

I've seen fake cum (where you don't see the actual ejaculation) which is a turn off and a shemale just cumming on the side of the face.

I thought it might have just been a taboo act or a turn off for the masses.

Are there any decent pics and vidz out there?