Maybe this belongs in the 'confession' thread, but if you want to combine sex lives and pets, here's what happened to me over the weekend.
We put the dog in his cage while, ahem, we, um, well, you know ....
Normally, when we're finished, we just turn out the light and go to sleep, but my wife has wanted to let the dog learn to sleep in our bedroom without being cooped up in the cage. So, she let him out.
He jumped on the bed and started licking all over my chest and back. Then we realized he was licking up the sweat our, ahem, fun had produced.