Feeling Him Ejaculating In Me

Quick, evidently unique fetish, since I've never seen anyone post anything like this. I'm happily married for many years but have a fetish that began when I was trying to get pregnant years ago and has continued to this day. I'm not sure why I am reluctant or embarrassed to admit this to my husband, but this is something that often turns me on to the point to orgasm.
When we were trying to get pregnant years ago, we were not using protection. I got really turned on feeling my husband throb and ejaculate deep inside me. Im not sure if it was because after many years of preventing getting pregnant, now we were totally trying without a condom. I absolutely loved feeling hubby throb and spurt deep in me, and after feeling the warmth of his sperm spreading in me. I would often reach back as I was on top, and feel his balls contract and that ridge on the underneath side of his shaft throb as he shot inside me.
One morning in the bright sunlit room, I sat reverse cowgirl on top of him. I was looking down at him disappearing in me as I rocked back and forth on him feeling him reaching up inside me this way. I loved how full his full balls looked under my weight, and I began to massage them as he grew closer and closer to ejaculating. From this position I could watch him getting harder and his balls drawing tighter against him as I rocked back and forth. I was feeling his erect shaft under his balls and gently rubbing them when he began to spasm and throb his sperm inside me. I felt like I was massaging and helping him drain them inside me! Ever since then I love to either feel his balls unloading in me with my hand, or on occasion, watch in the mirror as he pumps me full of his sperm. I never see any other women talk about this, so maybe I am unique, but I find this to be the sexiest thing!