For part of my daily gape training routine, I enter my standup shower to get cleaned up and cleaned out using a douche bottle and various shapes of toys with baby oil as a lube.
A couple of the phallic shaped objects are shampoo or body wash bottles that have had the labels removed to reduce friction,
I insert this body wash bottle all the way, twisting it relentlessly 100 revolutions like it was a broken door knob. This sensation causes my atrophied Penis and Testicles to draw up inside my inguinal canal creating somewhat the appearance of a vulva in my front!