Quick Post

So I did something I really didn't think I'd do - I fucked someone who wasn't my husband. I don't have time now to post the entire story, but I want to eventually because it turns me on. However, a quick question. I'm on the pill and asked this guy to wear a condom, just for me to be safe, but we didn't have one and I let him cum in me anyhow. What is it with guys cumming in women? I don't quite get it and it turned him on in a big way.