Honestly, OP. I would be careful starting PE because of what she said. It looks like a power grab on your ego and she’s got you hooked.
The girth of your penis, stated as 7 inches, is bigger than 80% of dildos and they tend to sell REALLY big toys. I mean any adult video store is going to abounD with toys smaller tHan you. Spend ten minutes in Ambiance. Ask for a 7” girth toy. They may just give you a bug eyeD look.
EVERY STUDY IN THE HISTORY OF MANKIND suggests she is full of it. Upper girth numbers don’t even break 7 inches on any study yet taken of Homo Sapiens.
If you are in fact 7 inches in girth, you cannot wear a condom without significant pain and that’s using a female condom on your penis. Which is wider than any male designed condom by a large portion. Including custom fit stuff with a 2.7” nominal diameter.
Her summation and request is not just ludicrous. It borders on biologically mutated, as a pelvic bone doesn’t tend to even stretch to 7” without regular coaxing much less further, eagerly.
For you to feel bad about your penis would be akin to feeling bad about finding out that most porn stars would cower in fear of your penis. Shane Diesel and Shorty Mac are the only guys that come to mind in the realm you are. And they can’t work with every actress. Because girth and physics demand respect.
Please reassess exactly why you would start PE because if she can make you feel bad about what you are starting with then she could easily continue to denigrate you using your size regardless of if you actually reached elephant proportions.
My .02 and my most sincere sympathies, as women can be more cruel than anything has a right to be.