@waifu Intent to have sex from both/all involved is a pretty good measure.
Lacking, it is rape. Not lacking, well don't mind me i might be clumsy, but still nice, maybe.
@Hyolobrika @waifu Yes, to remove the problem of different individual preferences.
Otherwise, some people would be enjoying themselves and be excluded, that would be weird.
Ofc this kind of definition cannot be used for legal purposes, as it is not precise enough.