You are in a loving marriage with a man who is asexual - he has no libido or interest in sex at all. Because you love him, you told him that you are also asexual and happy being in a sexless marriage. Secretly, you are not asexual at all and are very sexually deprived, but you conceal this from him because you love him and it's worth it to you to make the marriage happy. You and your husband have decided you want to have a pregnancy and you believe in conceiving naturally, so you have arranged for a male friend to penetrate and inseminate you to impregnate you. Because your husband believes you are asexual, he thinks this will be a totally clinical and non-sexual process, and he will be there with you. I'd like the video to be from the husband's POV not the man who is penetrating you.
You and your husband arrive, you are wearing a modest outfit maybe a dress. You discuss the situation with the man who is going to impregnate you, and explain that you and your husband are asexual, that he will stay and watch, this will be purely clinical, and as quick as possible. You undress, only as much as necessary to be penetrated, and you lay down. I'd like to see your lower half naked but then the POV can be from the side where your husband would be watching holding your hand. The friend begins penetrating you. But he's not cumming that quickly, it's taking him a while, and there's a problem. You are getting really aroused. This is the core of the video - you are extremely horny and sensitive from having not had sex for a long time, but you are trying to hide this from your husband. As the video goes on, you are shifting uncomfortably, stifling moans with a cough, trying to stay quiet. You keep telling your husband everything is fine. That it's just uncomfortable. You start to ask the friend impatiently what is taking him so long. It is taking him a while to cum and you are getting more and more aroused and having a hard time hiding it. Finally you can't hide it anymore and you beg him to finish before you orgasm. Unable to contain yourself, you have an embarrassing orgasm in front of your husband. The friend finishes and leaves and you confess the truth - you aren't asexual you just pretended to be for your husband's benefit. You were so sexually deprived the penetration from the friend made you orgasm. You beg your husband not to be angry eith you