A hot young birdie fresh from being passed around gets its tight little cork base popped for the first time, managing to fit three whole shuttlecocks in due to their extremely aerodynamically stable nature and shape. [Badminton]
Chopsticks task - Use two sets of chopsticks or something similar on each nipple like in the picture above. For added pain, tie the end of the chopsticks to something static and stable in front of you and pull back, stretching your nipples.