In the human male reproductive system, retrograde ejaculation occurs when semen, which would normally be ejaculated via the urethra, is redirected to the urinary bladder. Normally, the sphincter of the bladder contracts before ejaculation forcing the semen to exit via the urethra, the path of least pressure. When the bladder sphincter does not function properly, retrograde ejaculation may occur.
Retrograde...when it comes to sex...doesn't sound good!
Retrograde motion, in astronomy, describes the orbit of a celestial body that runs counter to the direction of the spin of that body which it orbits.
That sounds a little kinky!
Your right, its probably not good..........Whatever in the heck it meant.
All I can report is that theres nothing new with my sex life to this point. But dont worry I'll keep you guys posted..........