He's willing, no, he's eager, to have her do 'make overs' on him. The poor kid doesn't know any better, and is so happy that she's interacting with him and treating him like a real person and not a baby, that he's thrilled to betsy to sit there and let her paint glitter and eye shadow and blush all over his tiny little boy face.
I wonder, sometimes, what influence having three (four if you count Glennys) older sisters is having on him. His every move is accompanied by hordes of girls - frequently on the weekends, he has trouble walking because they are all clustered around him. While I have no doubts that he's a hard core boy (the other day, he cried until Marc put on Conan the Barbarian for him), I am amused that he's also a big fan of pretty pink tutus and glitter on his cheeks.