Propaganda is the act of distributing information among minors that 1) is aimed at the creating nontraditional loveual attitudes, 2) makes nontraditional loveual relations attractive, 3) equates the social value of traditional and nontraditional loveual relations, or 4) creates an interest in nontraditional loveual relations.
Ok, since we want to avoid promoting "nontraditional loveual relations", we are free to assume that vaginal love is the only acceptable loveual relation. It must also be for the purpose of reproducing otherwise it's not "traditional".
I'm sure OP agree with me and has no problem with it.