Need help talking to my GF about a kink

Even though I know that it’s a ridiculous notion and ‘the big ones’ do indeed hurt and aren’t enjoyable, some weird part of my brain would love it if I heard my gf say I was big - and I mean REALLY love it

Here’s my problem…

So, my gf has had a bit more sexual experience than me. I can’t remember exactly how we got onto the topic, and whilst this wasn’t her exact words, she basically gave me the whole “yours is perfect, the big ones hurt” during a conversation, and it’s safe to say I died a little inside lol

Most guys, whether they’d like to admit it or not, are insecure about their size, and I’m no exception. Now, in reality I know I’m pretty average in terms of size, maybe slightly above on a good day, but it gets the job done - we have GREAT sex…But, for whatever reason, part of me would still love to hear that it’s big.

The closest thing I could describe it as is a Praise Kink, but less “Good Boy” and more “Big Boy” lol

I want to talk to her about it, but every time I think of what to say it seems ridiculous - I know it’s irrational, kinda immature and like I said, I know I’m not ACTUALLY big, but I like it anyway.

Anyway, that got a bit ramble-y. Any thoughts?