So this subreddit has helped feminists have a better and more abstract understanding of sex that allows them to use the more modern and improved expression: "My pain, my choice". T-shirts should be manufactured on this
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.