I use a gaff to hold the equipment in place. EnFemmeStyle (one of our supporters here) has very nice panty style gaffs that work well, in my opinion.
Tape is for those individuals with, shall we say, oversize loads that are wearing very tight pants or dresses. I also don’t tape my boobs to get cleavage; that’s rather uncomfortable as well.
You can make a serviceable gaff out of a tube sock and elastic from an old pair of panties. Just cut the elastic off the panty and cut the leg part off the tube sock. Run the elastic through the tube, put a leg down each side and position the sock to hold the bits back and away.
Or, if you really want to go realistic there are vagina gaffs for sale with more realistic features.
PM me if you want to get into more detail.