I first tried to throw a wedding party and they were able to use the wedding arch. My active sim aged up to young adult, and he got the 'Get Married' wish and his parents have the 'See so-and-so Get Married' wish, so I decided to have them get married while the inactive sim is still a teenager. I have the settings on Woohooer and SP set to allow teen marriage, pregnancy, teen/adult relationships, etc. They became engaged as teenagers, and I had no problems there. I'm having some trouble with getting a teen/adult couple married.
