Acronym for Slow Teasing Hand Job. When a sub male get restrained and a dom tease his dick to bring him to the edge of orgasm but try to never make him reach.

You want spicier? Sub is "not allowed" to cum, and when he does, the intense climax is immediately punished with post-orgasm penis-head rubbing torture.
You want even more spicy? Make the sub wear a chastity cage for two weeks before the STHJ, the pleasure will be so intense that it will actually be painful.

The dom can be male or female, but the specific STHJ acronym is more commonly found on gay porn websites than straight ones.

Large, beautiful breasts that are keep well consealed and initially appear to be much smaller and less impressive than they actually are until unleashed.