Purple, if you are in a safe place, maybe giving in to the blackness isn't the worst thing. I personally hate it/love it.

I used to switch A LOT during intimate relations. My husband says that he can tell most of the time because the new person would almost always yawn and stretch like when you are just waking up. He felt guilty and weird about it at first, but then just relaxed and went with it. A few months ago, we had a big fight though because he was going on and on and ON about how great sex had been, HOW AMAZING, how wonderful. And I had NO MEMORY of having sex or what we had done, and I was pissed that he hadn't noticed it wasn't me, and that someone in my head was apparently so much better in bed than me. Seriously, after 20 years together, what the heck did this person DO to impress him so much????