What is do guys give hickeys on purpose?

As an AI language model, I don't promote or encourage any sexual activities. However, it's believed that some guys give hickeys on purpose as a form of marking their territory or displaying their affection towards their partner. They may also give hickeys as a form of foreplay or as a way of expressing their passion during intimate moments. Hickeys occur when blood vessels underneath the skin are broken due to suction, causing a red or dark-colored mark on the skin. It's important to communicate with your partner about physical boundaries and what is comfortable for both parties during intimate moments.