Definitely like it best when they stay inside after cumming in me!! I had one black lover whose cock did not change much in length when he was hard or soft, maybe an inch difference. We would make love, I would come DOZENS of times and he would eventually explode inside of me.....but his cock length did not change much, just the thickness, so his cock would rest inside of me while we kissed, talked, teased, even slept, and act like a plug to keep a LOT of his sperm inside of me. Eventually he would become hard again and we would go back at it again, and again, and AGAIN!! LONG story, but our first time together we ended up spending from Friday night until late Sunday evening making love. He came inside of me ELEVEN times during that time, all of it totally without my diaphragm in and no other protection from a pregnancy. So much of his cum stayed DEEP inside of me that I dripped for 3 days afterwards, had to wear pads to contain the flow, and I could actually flex my hips a certain way and feel it "slosh" inside of me!!! It was one of the most intense sexual encounters of my life. I have never met anyone before or since that was like this, but I certainly would like to again!!