Is it normal to wipe/wash your gf/wife ass after she poop

Why would you do that?

Is she a baby?

and lick her ass after

No, that is not normal at all. However, it also causes noone any harm and if you both feel intimacy from it, I see nothing wrong with it!

Only of she's morbidly obese and can't reach

Ah yes, because everybody whipes their girlfriends ass, just a common household activity.

is she physically unable to do it herself?...physical handicap?

Only if you are her sex slave.

poop fetishes are real, lets not deny that, but they often stem from unresolved childhood trauma. perhaps, seek therapy... but if u continue, make sure to use charmin ultra soft. it's the best brand around... however, they do use rainforest hardwoods and child labor. keep that in mind, all in a days work tho. its nice work if u can get some

Why wouldnt she do it alone? She can do it on her own. She a baby?

Nope, it's not normal to wipe another adult person's butt after they've had a bowel moment unless they are disabled, or very sick, and weak.