Buddy doesn't know that his gf has swallowed my load over 100 times

It's not as bad as it sounds, no cheating was involved. My buddy has been dating this girl for a little over a year. Says that she's the love of his life and that he wants to buy her a ring. The funny thing is that she and I have a history.

We dated for a few months about two years ago, and oh boy was she freaky. I'd drive her to and from work and classes every day and she'd always thank me by swallowing my dick for the duration of the drive and letting me cum down her throat as many times as I could. We broke up eventually, things just weren't meant to be, but we remained friends and it didn't take long for me to graduate from being a shoulder to cry on to having her head in my lap again for another couple of months.

Then one day I get a call from her letting me know that she started dating my friend. I think she expected me to be upset but I couldn't have been more happy for them. We've never hooked up since, and they've gotten pretty serious. He has no idea what kind of trouble she and I used to get up to and probably never will, Unless she shows him our porn, but I'm not sure why she would do that.
With her permission, I left our porn here, she's very hot.