Back to the OP, I vote Nay in a big way. Sex is the spice of life in the right place and time. In this context the nicest word I can come up with is sleaze.
As previously noted, you are appearing before both families for a family ceremony. Personally I wouldn't want to give my maiden aunt damp panties by parading around in sexy and revealing clothes in front of her. And for sure I wouldn't want to educate my little neice about the male bod. Any girl who didn't feel the same way probably isn't someone I want to hang out with.
Besides I haven't lost enough brain cells to get married anyway.