Hmm, it would be interesting to see where the line is drawn of what you can do with the standard Grim Reaper.
When I only had the Starter Pack (base game plus Late Night), my sim in my original Bridgeport game became good friends with Grim, because there was one sim in a constantly partying group of apartment dwellers who had the "unlucky" trait and repeatedly died to hilarious accidents. Lots of cellphone pics and friendly conversations later, Grim one day called my sim to go on a date at the local science center. Grim immediately went for a long swim in the pool that's below parts of the building there, and for that he changes from his skeletal appearance into a YA sim with jet black skin. You could do all romantic interactions up to "make out", and there unfortunately wasn't any place to test whether you could go any further. He left hours later when I tried to get him to go on a tour of the science center, so I can't tell anything more than that.
