We have pictures from next week's episode of The Big Bang Theory, "The Cushion Saturation" and wow does this episode look juicy. Warning, the following definitely reveals a spoiler about the episode!
After a paintball game, Penny gets paint on a couch cushion, and, of course, it happens to be in Sheldon's spot. Meanwhile, the paintball game ends up perfect for Wolowitz who ends up in bed with Leonard's ex, Leslie Winkle.
Here's some pics from the episode, click to enlarge: