Pee Here (Scripting Mod) by Sims MX
This mod adds a new interaction to male Sims so they can pee on terrain.
The interaction is only available if the Bladder motive is at 50% and it will be stopped if another Sim is too close to your Sim (unless both Sims are in a romantic relationship).
This is a scripting mod, so conflicts with other mods are unlikely.
This mod was compiled against patch 1.55. It does not require any expansion or stuff pack.
From Simlogical (~14 KB).
2013.6.18: Update for patch 1.55.