Speaking of cycling and sex, here is an event that is more fun than a man should be allowed to have. This is probably my favorite cycling competitive event.

2012 Olympics, team New Zealand practicing team pursuit. Guessing 37 mph, 700 watts off the front 450 w sitting in @ 120 rpm. Note the line they use around the track. They drift up to the red line in the straight and dive back to the black line in the turn. This allows one to carry more speed out of the turn. The olympians make this look really easy. It does take a lot of practice to get perfect especially at higher speeds.