So you don’t argue that it isn’t rape but just, that it is not legally rape in the UK.

Just as a sidenote, It would be legally rape in e.g. germany.

But I give you the point, because of the hand thing. While the conversation is probably not about doing something with their hand. But maybe the person has aids and is just supposed to inject their blood into the victims veins. Then it is not rape. Still a disgusting act of violence but no rape.