Oxytocin Has A Positive Effect On Sexual Attractiveness, Making It A Potent Combination
Research has shown a link between oxytocin in human's bodies and positive social interactions. "Social interactions" being a broad term that covers everything from hugging to maternal bonding to highly satisfying orgasmic reactions. In fact, it's even been dubbed the "hug hormone" while drawing comparisons to alcohol and cannabis. So, University of Bonn conducted an experiment on women to see if this drug does, in fact, make their male partners appear to be more attractive. Results: tantalizing!

It's safe to assume this means that when they look at their partners, they see rainbows, feel butterflies in their stomach and have a pounding heart, even before the additional oxytocin. There's no science behind that definition, per se, but I personally put forth the proposition that's what "passionately in love" means.
Anyway, point is, these women don't need help from oxytocin to see their man as a sexually charged hunk, by any means.
The next involved giving half the women a placebo, and the other half inhaled syntocinon (a synthetic form of oxytocin). They were all then shown a lineup of sexy beefcakes, as well as their partner.
An example of one of the beefcakes shown, we assume.
This process was also done vice versa, whereas those with the placebos in the first experiment were then given syntocinon sprays, and the others were given placebos. After each set and the lineup of hot males up for grabs, results showed that women with oxytocin in their system found their man to be 15% more attractive.

Well, that part is unclear, but what is clear is that without birth control and a little inhalation of oxytocin women start feeling starry-eyed when looking at their male partners. A 2013 study, again by The University of Bonn, found similar results when tested on men and their attractiveness to females.

Okay, maybe don't do that in secret, because that clearly sounds wrong. However, you could kindly suggest it to a loving partner for a night of fun? There, that sounds more consensual. Although, even for that, you'll have to wait until this oxytocin-like body spray hits the markets. That is all.