Board Thread:General Discussion/@comment-28776596-20190826062936/@comment-5426290-20190826064832

I'm pretty sure that love is the most important thing in monster culture.

If the monstergirl feels a strong love in one or both of the human spouse for eachother, the monstergirl will insert herself as the husbands second wife.

She won;t steal him away, rather she will convert the wife into a monstergirl too so they can give him some double loving trouble.