The weird thing is, this particular kink -- inter-party sex that your favorite candidate would disapprove of -- appears to only go one way. There are plenty of Democrats seeking Republicans, in the most explicit terms possible:
Yeah, the term "Republican c**k" comes up a bunch. Like this next one, who claims they "always fantasized about sucking on a nice hard Republican c**k" and are apparently turned on by the exotic draw of a "conservative manhood."
You get the sense that in their social circles, a Republican is like a unicorn. Or rather, the sexual equivalent of a unicorn, so maybe like a guy with two dicks -- a crazy walk on the wild side you can tell your friends about later ("Then he started talking about funding Medicaid via state-level block grants!").
But I haven't been able to find any Republicans fantasizing over the same thing, in the other direction. In fact, some of the Republicans I found would only hook up with other Republicans: