All I Want for Christmas Is to Suck Cock with You: POV Bi-encouragement

Your girlfriend tells you what she wants for Christmas. Starting off by only asking for a three sum. Seeing how you react and that you might be slightly into the idea yourself she presses further. Pushing and pressing the topic until she's asking you to suck cock with her. Nothing hotter to her than locking eyes over another man's hard shaft. You seem hesitant so she pulls out a dildo for the two of you to practice on. Starting with you both kissing it slowly even demonstrating how she wants you to handle it. Using it to part your lips and fuck your face slowly at first. Going into detail and describing how turned on it makes her just imagine it. Guilting you into wanting to do the act for her. She's obviously been fantasizing about this and tells you exactly how she pictures him finishing. You on your knees, your face covered in cum, it dripping out of your mouth as she calls you a good boy before kissing you to swap what is left between your lips.