Saddlebacking - the term for the phenomenon of Christian teens engaging in unprotected anal sex in order to preserve their virginities. Named after Saddleback Churh, home of the Reverend Rick Warren, who is a proponent of abstinence education, the "sex ed" that has convinced so many Christian girls and boys that buttfucking isn't actually sex.

the art of remembering an arousing occurrence or some porn you watched while masturbating, often handy if you have no porn or your in the shower

the phenomenon of Christian teens engaging in unprotected anal sex in order to preserve their virginities

When straight kids ass-fuck because their abstinence only sex-ed classes have erroneously convinced them that anal leaves the girl pure and virginal.

When a young unmarried christian couple has anal sex in order to avoid vaginal intercourse which would be considered fornication and a sin.

Saddlebacking: sad•dle•back•ing \ˈsa-dəl-ˈba-kiŋ\ vb fr. Saddleback Church (2009): the phenomenon of Christian teens engaging in unprotected anal sex in order to preserve their virginity.

The action of performing anal sex in order to preserve ones vaginal purity. Most extreme religious couples practice this before marriage, although in almost all religious publications this is looked up as a worse offense.
In the case of homosexual relations, this is the only way for a men to perform intercourse with each other.