Is the insertion of the penis between a man's buttocks, without entering the anus, considered an act of sodomy?

This heinous act inquired about by the questioner is not sodomy (liwat). Sodomy, in Islamic law, is a man engaging with another man in his anus. This is what Al-Adawi Al-Maliki meant by his statement: "The insertion of the glans into the male's anus."