M4F - I need a woman's help 😂

Okay so I have this condition called delayed ejaculation which makes it borderline impossible for me to cum when I have sex, that's not to say I haven't done it just rarely happens. I'm fortunate to have a GF that lets me do whatever I want with her. I can fuck her in the ass, choke her, slap her and she even rims my ass which is my favourite but is still don't finish. I've fucked her to the point she's lost count how many times she cummed and I'm pulling a hamstring. I've never posted on a sub like this before so I have low expectations. Not sure if it will help me with my situation but I'm trying anything at this point, soooo I'd just love to have a submissive fucking slut to talk to and sext, my own dirty secret that can try and help me cum.