Use silicone lube
Though the consistency is likened to motor oil, silicone is by far the best lube you can use for shower play. Any water-based lubricant (along with a woman's own) will wash away long before you'd like it to.
The result of shower sex without lube is too much friction. You might not even be able to get in there at all! And while it might seem convenient, steer clear of body washes, shampoos, and conditioners. The consistency may feel like lube, but using these items could result in a nasty infection.
Position pairing: Standing up with hooked leg
Take advantage of the lube by using this otherwise friction-filled stance. "This position is for those looking for a more romantic shower-sex experience," Paulita says, "as it allows for eye contact and kissing. Standing facing each other, one should hook a leg around the partner, then enter." Unlike the doggy-style variation position, this is perfect for cubicle shower sex. "The one big problem for this position is height difference -- I’m 5'3", so I know all about these problems -- but a bit of adjusting can quickly rectify that problem."