We approached a friendly couple who were trying to conceive and invited them to use the MM service! We asked the husband to go outside for a while, and the wife was given a lewd treatment under the guise of an effective fertility massage, and even had sex with a condom! So far, it's all according to theory, but the real purpose is... to remove the condom without them noticing and secretly cum inside the fertility-seeking pussy with thick sperm from someone other than the husband! They were so sensitive to our big dicks that they didn't even notice when the condom was removed, so we quietly inseminated them!