What is the ruling on a man tasting his semen? Is it forbidden or permissible?

Consuming semen by eating, drinking, or tasting it goes against sound human nature (fitra). There is no specific text regarding the ruling on tasting semen, but its consumption is prohibited because it is considered among impure things (khaba'ith). If it is ritually impure (najis), then tasting it falls under the category of becoming defiled by impurity without necessity, which is unlawful (haram). Therefore, one must avoid tasting semen.