First time sharing my ex-girlfriend [MFM]

My ex-girlfriend Nina and I had a very interesting relationship. When we first met, all we did was have sex. Multiple times a day, anything you can imagine. She loved playing in public places, giving me blowjobs while I drove, jerking me off in restaurants and movie theaters, you name it. Our sex life remained vibrant and only expanded with time. A little about each of us, I’m your typical white male, tall dark and handsome as I have been told. Never received any complaints about the size of my package, most women especially admired my girth. Nina was black, slightly shorter than me with suckable size breasts and nipples and an ass that would fit perfectly in your hands. She was a mother from a previous relationship so her vagina was stretched out from the childbirth. She was very much into being stuffed so we would often play with dildos and double penetrate her pussy when having sex.