You May "NOT" kiss the Bride
I filmed another wedding last weekend where there was no first kiss.
I have often seen the disappointment on Bride and Groom's faces as they walk down the aisle together for the first time having not had the traditional first kiss.
Technically it is not part of the Catholic Ceremony and some more traditional priests do not initiate it in the ceremony.
I have not heard of one refusing to do it yet but I highly recommend checking this your priest and asking him to utter the famous line "You may now kiss the Bride".