The proverbial joy of sex must be about pleasing the other person and enjoying their response and enthusiasm for pleasing you. In that context there is no mystic hinterland of confusion about consent. It's obvious.
There is something deeply problematic in feminists' undermining of criminal intention in relation to rape. Because what it means is that stupid men, drunken men, thoughtless men and idiotic men who engage in ill-advised or regretted acts of sex are now increasingly lumped together with actual criminal men under the heading "rapists".