I've had a few experiences. I got head while actually flying a single engine airplane (just me and her in the plane), and many times fingered an old girlfriend in flight to help her deal with being scared of flying.
Let me know if you'd rather have more details, on here or in private message.
Flying back to my ship during my Navy days, the woman sitting next to me made it very clear she'd like to get to know me better. She later told me you never forget your first lover....she was right. Still remember her name all these many years later.