IME no. Though haven't done straight swap really, that doesn't sound like as much fun as more of a pileup. Usually (I'm a straight lady) it's both guys with each lady at least some of the time, while the other takes a break/watches. Women who can multiple O are overrepresented in swinger community, and guys often can (I think it's Viagra, LOL).

So basically no, that hasn't what I've experienced but I do not understand straight up swapping, I'm with the guy I like to fuck best already, right? Two on one in a lot of configurations happens with a two couple meetup, in my experience. And certainly getting off more than once.