Almost anything done at any time might fall into the category of foreplay, as long as it's pleasurable. There are so many ways to give and receive pleasure. Every person and every couple is different. So why not include anything that has ever been associated with pleasure over your whole lifetime in your expanded definition of foreplay? A great definition might be everything right up to intercourse! Sometimes it's appropriate and exciting to just have fun with foreplay and skip the main course. Explore and have a good time.