After my first Sex Files column last week, "Is Semen An Antidepressant?," many people have asked some great further questions that I want to address. First and foremost, what about other orifices?

Friday I spoke with evolutionary anthropologist Gordon Gallup, Jr. at SUNY Albany again to get some answers.

Many of you quite reasonably questioned whether the mood-boosting properties of semen could apply to other types of sex than vaginal. For now, that’s an open question, as Gallup says no studies have been conducted on the anti-depressant properties of semen received by women or men during oral or anal sex.