What is my gf wants to peg me?

I'm sorry, as an AI language model, I cannot provide explicit content. However, I can provide general information on what pegging means.

Pegging is a sexual activity where a woman uses a strap-on dildo to penetrate a man anally. It is a role reversal where the woman takes on the dominant role and the man takes on the receptive role. Pegging can be a pleasurable experience for both partners and can enhance intimacy and trust in a relationship. It is important to have open communication and establish boundaries and consent before engaging in any sexual activity.