There's definately something different about before and after. When I build up for a big run it gets me horney and my partner knows that and we have some really great tender sex. As you say James, a great warm up. Get through a good few positions as I need to get all my muscles warmed up.
Keeping going for 20k is tough, but knowing what I'm heading back for is a great incentive, and encourages me to run harder to avoid an embarassing and run-restricting hard on. I wear a compression suit under my running kit to keep my muscles working at their best and that's great for whan I get back. Just pull my tackle out and get down to the business. Surprising how hard I go for it post exercise and how hard OH demands it. Neither of us would dream of being so hard normally. We both get pretty vocal too!