No FBS football conference prohibits, by rule, home and home games with FCS teams. The policies like bowl eligibility and revenue generation make scheduling H&H games with FCS schools prohibitive to the FBS school. And that's not talking about putting your football team in a no-win situation with reputational damage (i.e. win and you were expected to win, lose and you suffer the embarrassment of losing at a lower division school. Although it could be said that a FBS school losing at home to a FCS school is a bigger embarrassment and often costs coaches their jobs.) In essence, the risk of a FBS school scheduling a H&H football series with a FCS school is so risky as to be prohibitive.