User blog comment:Brandon44433/Crossover For Phineas and Ferb/@comment-3224360-20101231032128/@comment-3251190-20101231032703

South Park is a somewhat perverted show. If they combined in with P&F, then the girls (Isabella, Candace, and Stacy) might do some really weird things that I can't talk about on this wiki. The boys would be weird, Doof might have an affair with one of the main character on South Park's mom, the people in South Park would hurt and abuse Perry or get seriously injured by Perry, and P&F's parents would do perverted stuff. Just my opinion.