From many sources, in e-mail and on Facebook, this ad from the Family Research Council:
“Oral Sex and Doggie Style! Family Research Council: Call 2 Fall Is Call 2 FAIL!” by Lisa Derrick 6/27/13:
Gay-hating Family Research Council, now labeled a hate group rather than carrying the Christian branding of being a loving faith-based group, has yet another epic fail on their sweaty social media hands. Their latest campaign, Call 2 Fall complaining about marriage and the repeal of DOMA using hip cool internet lingo is the most hysterically wrong-thinking ad since, well their last one.
… This image from Family Research Council … clearly suggests fellatio followed by modified doggie style intercourse.
So: a “call to fall on our knees” comes out looking like a call to fellatio.