When you’re in a large crowded area with the girl of your dreams and are walking, slowly and she asks a tough question. You go to slide your hand deep into her anus to soften the blow and she clenches her cheeks and grabs your hand. Her prevention is a defense mechanism.
Definition #2 : a condom
I went over to her house & could feel her juices flowing and then she whipped out a condom, what type of a defense mechanism is that bullshit.