Wife’s BFF Wanted A Baby

My wife’s BFF confessed to me that trying to start a family was not going well because her husband had a low soerm count. She then surprised me by asking if I’d help, and over a week begged me to help her as she didn’t feel comfortable with anyone else.
Finally I agreed but swore her to everlasting secrecy. We agreed we would meet twice a week until either he or I got her pregnant.
The first meet was awkward but she sucked me and I licked her a little until our bodies at least responded and as I came inside her we found ourselves kissing.
The second time we kissed from the start and when she slipped off her dress she had the sexiest lingerie set on which I complimented her on. I wanted you to find me sexy and enjoy this she replied.
Four months later and she tells me she Thinks she is pregnant but we have sex that afternoon as usual. Two days later it’s confirmed and we don’t. A week after she asks to see me and when I arrive she is dressed in lingerie, heels and nothing else. I’m pregnant so could we have sex one more time but without the need for you to come in my pussy we could do anything. Anything I asked and she replied I always thought you’d like my ass with a smile. And you can cum there too.
She’s five month gone, her belly is swelling and yet her figure remains tight. We can’t stop and I love fucking her