The first time seeing a black guy's huge cock was during our (GF and me) first visit to a swing club in NYC. We undressed and went into the group room, laid down on my towel, and covered ourselves with her towel. We kept hearing a gal moaning loudly, and saying," OMG that feels good!" As our eyes got used to the dim lighting, we realized that the moans were coming from a gal about four feet from us who was riding up and down on a very large black cock. My GF whispered to me, "That cock is as big as my arm!" She put her arm in front of my face, and sure enough, his large black cock looked as big as her arm (she is a petite Asian).
At that timer, mine was the largest cock she had ever had, and it was only 6X5 inches. Over the years since then, she has learned to enjoy fucking larger and large cocks. After about four years of swinging, she tried, and enjoyed a white guy's 9X6 inch cock, but could only take about 6 inches in her. A few years later she finally had he first BBC, and really enjoyed it. He was about 9-1/2X 7 inches. The guy was very compatible with us, and after some enjoyable conversation we all undressed. He and I began giving her foreplay and oral and she had a big orgasm. He and I started sucking each other's cocks. This turned her on so much that she grabbed his hard cock from my mouth and pulled it over to her pussy. After they started fucking I realized that he did not have a condom on, something we are always careful to do for any penetration because she cannot take birth control pills. I looked up at her and asked if she wanted for me to have him stop and put a condom on. He eyes were glazed and rolled back in her head, and a smile was on her face. She slowly shook her head, "No", reached up, pulled his hips hard toward her, driving his cock deep into her. At that point I realized that if she got pregnant the baby would be black.
They fucked for about 45 minutes when he had to stop to keep from cumming. He went down on her for about 10 minutes, and then they started fuck again. After 30 minutes she asked him to stop because she was getting sore. She and I took turns sucking him until he came and came and came in my mouth and on her tits. We all French kissed, snowballing his cum. He later told us that he was V safe and we did not have to worry about her getting pregnant.
We have become friends with benefits (FWB) and have gotten together with him many times since then. She likes for him to be bareback in her and fill her with his cum. I enjoy sloppy seconds and the three of us snowball with his and my mixed cum afterwards.