The idea that rape isn't about sex and only about control is an idea that arose from feminism at some point along the way. It's a warped simplification of the concept of rape that feminists, for some reason, felt benefitted their argument against sexual violence. But we know better. We know that power and control, for our perps, heightened their sexual arousal, that the power and the sex were combined into one, present at the same time together. This idea that it's either sex or it's violence, one or the other, is bullshit. We all know that the violence only stopped when the perp had his orgasm.
Quoted for truth. Without opening up a political discussion.... I have a definite overall ideological preference and so do most of my friends, but even among those friends and people I respect there are a lot of damn stupid bits of dogma that just get passed around thoughtlessly like fortune cookies and YOU ARE NOT ALLOWED TO DISAGREE. And the above is absolutely one of them.
If I were to try to play a game of Jenga with my penis, tapping it against the stacked-up tiles and hoping not to knock the tower over, or conversely swinging it around to knock the tower over on purpose just for a laugh, THAT would be a misuse of the organs in a manner that truly has nothing to do with sex. The Off-Broadway show "Puppetry of the Penis" (exactly what you think it is) has nothing to do with sex.
But if someone is fucking somebody else and the fuck-er is deriving sexual pleasure, then yeah it's about sex. Other stuff too, but that's on the list.