To Jama
I haved tried both. The colours are almost the same.
Peach O Pinch has no shimmer, while Orgasm has very fine gold shimmer. The gold shimmer didn`t really show on my face because I`m a bit tanned. However, when my European friend who has pale skin tried it on, the gold shimmer was really obvious.
Also, the effect of this gold shimmer on her face was similar to Bobbi Brown Bronze shimmer brick, apart from the colour difference. BB`s was very sophisticated, my friend loved it so much she bought one that day. (She now has both Nars Orgasm and BB Bronze Shimmer Brick)
I didn`t buy Orgasm at the end, because I have BB Bronze shimmer brick already for the shimmery effect, and MAC Peach O Pinch suits me a lot better. It is sheer and matt, and perfect for a very natural look or team with smoky eyes.