Yea, it's just not Fallout without a bit of fun in the sack. Fallout 3 has been dumbed down so much for the console; I knew that would be the first to go. It wouldn't be too hard to do logistically: You need a proposition script, where it either causes the propositioned NPC to begin walking to their designated bed or record their position and cause them to follow the PC to one of theirs. When they get there, strip. You need a few animations, a few sound effects; preferrably for each of the male/female voice types in the game. Finally, an aftermath script, where after a few minutes, the NPC gets up, redresses and continues their normal routine/returns to their original location. I'd think the hardest part would be the animations.