i think most girls are afraid of opening/gaping.
many do not even realise they CAN gape.
most men act wierd when a girl does "loosen up"
you can feel it in the air, the anxiety.
this is most likely a turn off for the girl/woman.
all of a sudden the man sees her vagina as a threat,
they suddenly have "something to prove" and act more macho.
things get wierd if the man is ignorant,
hence "tight pussy this and tight pussy that"
a girl who is orgasming is gaped.
if men can learn to get high on that...girls will too.