Dont think all girls are same. Same may like, but most dont like.
Its not that they dont enjoy the touch, its the sheer dignity. Touch a girls private parts, you are disrespecting her. If you want respect, you have to respect people.
But somewhore's are there who love to be squeezed and get some dick pressed in there ass. They mostly travel in crowded bus or train. Dont judge girls by only those whore.
My siple reply is, girls only like to be touched by those guys, they feel a mental attachment with. Handsome or ugly doesnot matter, she has to feel comfortable with him.