Why she dosnt want to do a mfm threesome?

She may not want to engage in a MFM threesome due to personal preferences, feelings of insecurity, or concerns about emotional intimacy. Additionally, she might worry about the dynamics of sharing her partner or the potential for jealousy. Comfort and trust are crucial in intimate experiences, and she may not feel ready or willing to explore that scenario. Ultimately, her decision reflects her own boundaries and values regarding relationships.