An intense longing for love; it is the antonym of philophobia, which is the fear of love. Philophilic individuals have either overcome the fear of attachment or risk it.
She justloved to love. It seemed love itself was her object of love. She was infected by philophilia.
Sexual arousal from seeing or touching the buttocks of another person. The term is not gender-specific. A person who is thus aroused is a "pygophilist" or "pygophile"; "pygophiliac" may be used if the arousal could be considered abnormal, pathological or extreme. In a finer sense, "pygophilist" can be used to infer a person whose predilection includes actively touching buttocks, as the suffix -ist connotes "one who does", whereas "phygophile" (-phile, "one who likes) could include those who are content merely to look at buttocks.
Pygophilia is not that uncommon - my best friend is a total pygophilist - but that guy at the office has had his hands on more ass than a donkeybreeder; he's a complete pygophiliac.