Hey bro. I have been there. Still do on occasion. Ms.Cornobbled is bisexual and we end up with an extra pair of panties on the floor occasionally. Sometimes I end up with a couple of tasks to complete. Occasionally the two heads have a hard time (or not so hard time) getting things going. It is just a mental thing that plagues me sometimes. I find that the less I worry about it the less that it happens. I am almost to the point that it is no longer happening at all. Just try not to worry. That is my best advice.
Good luck bro!