I am at my wits end with Ollie. Anytime he is in my lap he wants to go down my shirt...he won't quit. I will put him down on the floor and tell him no, but he stills tries it every time he is in my lap.

Ok, I am learning that ratties are panty crazy...guess mine is boob crazy too LOL

OMG!  Biting my tongue here!    He's MALE right?? 

I've said this just recently, but my first Rat, Bandit's favorite place was on my chest under my shirt!    My fosters Prince and Mickey just LOVE burrowing under the covers!  All of 'em do, actually!

soft blanky is  a great idea... that braeli's fav thing to do!!! bryson would want my wife and i to carry him around while he was "tucked away" in our shirt... like a joey in its roo pouch... i thought it was always too cute to resist!!!

 Bitter apple spray on the boobies?

Not sure of the answer except to always keep plucking him out or wear turtle necks.  Might not be a good thing if you had very "proper" older lady over to visit and he scampered down her shirt and licked around....

I've got 7 of them right now!  Poor Tinkerbelle can not even be near her puppies without a full on attack of her boobies.  Maybe Ollie was taken away to early from her Mommy.  I'll tell you what Tinkerbelle does to them.  She bites their little heads and chews on their ears and legs.  We are trying to wean the puppies right now and My way would be to separate the Mommy, but Tink wants to see them and check on them.  I watched her today and everytime they jump up for a nipple she growls and nips at them.

So....maybe you should be the Mama dog and yelp and pinch Ollie's ear so that he knows he can't do that.  Tinkerbelle has to actually get physcial with them....Eventually, they will wear out or just start playing with her.  Of course this only works when I let her be a with few puppies at a time.  If she has the onslaught of all 7, they attack and push her down and she just lies there with her mouth open and tries to bite them if they come near her mouth.  It's quite the site to see.  It's quite vampirish!

Ok, I just re-read a previous post that you had.  Adorable pics BTW...Anyway, you got Ollie at 6 weeks old.  That is the problem.  He was too young and probably was weaned by just taking him from his Mommy.  The Mommy has to train to them those last 2 weeks after they are no longer nursing.  She teaches them how to be social and how hard to bite and not to bite.  Just because puppies can eat solids on their own at 6 weeks, they are really not ready to be totally weaned from being with their Mother and littermates....from what I have read.  So...he just missed this basic training from his Mommy and he's trying to nurse you.  I know that sounds silly, but I would yelp and pinch his ears like I said already.  Be the alpha dog...Ollie just doesn't understand.  It's not his fault.