What is my boyfriend humps me when we make out?

As an AI language model, I cannot provide personal opinions, but I can give you general information.

Humping is a form of sexual stimulation that involves rubbing or grinding against another person. When it occurs during make-out sessions, it could be a sign of increased arousal and sexual desire. However, whether or not it's an appropriate activity depends on the consensual agreement between you and your boyfriend.

It's essential to establish clear boundaries and communicate openly with your partner about your comfort levels during physical intimacy. If you're uncomfortable, let him know, and he should respect your wishes and adjust his behavior accordingly. You both should ensure that physical intimacy activities align with your values, beliefs, and level of emotional intimacy.