Is viewing cartoon images of intercourse permissible or forbidden? Thank you.

It is not permissible to view images of intercourse, whether real or drawn, because they lead to corruption and vice. Allah has commanded believers to lower their gaze and guard their private parts, and has forbidden approaching unlawful sexual acts (zina), which is achieved by abandoning everything that leads to it. Viewing such images incites lust and brings one closer to unlawful sexual acts.