Female led relationships discussion

There is plenty of content available about small penis humiliation and similar themes - being penalized for having a tiny, useless cock etc. This appeals to me, yet I also frequently imagine a related but distinct scenario - being evaluated, critiqued, and punished on my overall sexual performance, not merely my dimensions. I believe this kink began roughly five years ago with a girlfriend I had then. She was totally vanilla, able only to climax via intercourse. I would often finish well before she even neared her peak, ensuring that she did not reach orgasm (she refused anything from a dildo or vibrator). This situation made her increasingly irate, and she accused me of being selfish. Eventually, she started shouting at me and hitting me when it occurred. My current girlfriend and I experiment with this somewhat. Besides my small penis, I have very poor endurance. Early in our relationship, I once finished just as I was entering her - she could feel my little cock throb and knew immediately what happened. She gave me a surprised, slightly angry look and said “Are you serious?” Since then, she doesn’t expect too much from me sexually, and most of our “sex” involves me watching while she uses her Hitachi on herself. The worst incident with her was when I had to stop her as she rolled a condom onto my dick. I waited a few seconds then attempted to finish the job myself, but I still came. Again, I received that surprised and angry look from her. Sometimes she allows me to try getting her off, either via handjob or oral. When using my hand, she always has to guide my fingers to her clit, and I rarely manage to get her off before she pushes my hand aside to make room for the dreaded Hitachi. Oral is even worse though - several times in the past she’s picked up the remote and started flipping channels while I was hard at work, and last night after lying there silent and unmoving for a good 3 or 4 minutes she suddenly asked me “Did you take the trash out tonight?” It was so clear that her mind was on everything but my frantically straining tongue on her clit. She usually lets me go for a few minutes out of kindness before I get the tap on shoulder, meaning my time is up. My fantasy is for my girlfriend to take this one step farther. She tells me that our relationship is unfair - clearly I’m not providing her with the sexual stimulation she needs, and it’s as much from my poor technique and stamina then my undersized penis. She suggests that she could and should severely punish me for selfishly depriving her in the bedroom. Examples of fair punishments might be paddling, grounding, reduction of allowance (she controls my finances and gives me a weekly allowance), writing lines, corner time, extra chores, etc. Maybe she has me go out and get a school gradebook so she can break things down into categories - foreplay, stamina, size, number of orgasms for her, etc. Phew! Sorry for the long-winded post. Have any of you experienced or thought about anything similar?