I don't get specific short sentences, but will get the occasional
intrusive thought that's explicitly sexual. While I enjoy those, I don't place any more emphasis on them than any other intrusive thought.
It sometimes is related to whatever I am doing. I used to work at a large table surface that could be raised or lowered or tilted. I was often enough bending over it while standing. Definitely had some interesting random ideas that would take me by surprise...
Like Brianna, I've cultivated them. Why not?