I understand that the mere thought is disturbing to many, but a big, genuine and innocently warm hug and a quick peck on the lips was the standard greeting (and farewell) in my (large) extended family for blood relatives and relatives by marriage. Gender and age didn't matter.
It was kind of a church thing, too, with people at the service (during a specific juncture in the service) who were "honorary" family, at least. Small, close-knit congregation - very community service oriented - dedicated to the Golden Rule above all else. You know, crazy Great Lakes Region Lutherans, German heritage.
Anyway, I never thought anything was odd about it while growing up - never thought about it at all, really - until I started spending extended time with families from other Christian churches and other faiths - except for a couple of Catholic churches that had that same break in the service where you'd hug he person on each side of you and give them a quick peck on the lips.
Some sort of relatively ancient cultural tradition, I guess. How much one reads negative implications into the innocent traditions of others depends on one's own cultural heritage, I guess.