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 was all according to theory, but the real purpose was to remove the condom without anyone noticing and secretly ejaculate thick sperm from someone other than the husband into the fertility-seeking pussy! They were so sensitive to our big dicks that they didn't even notice the condom being removed, so we quietly inseminated them!