For the Ipsissimus, there is no custom, still any custom can be established, because that is what custom essentially is, a present creation of a meant earlier in buy to express the plan of 'progress' and 'passing on', with the illusory plan that time (which will not genuinely exist) has the electricity of increasing a fruit and ripening it. This is, in the parlance of fanfiction, the Porn With Some Plot class of smut.