My female dog was mounted by my neighbor's dog

Is there any risk of her mating other dogs, when I take her out for a walk? Yes. After a series of planned mating, don't leave your female dog alone out of the house, cause, inevitably, other males will be attracted by her. These unions can result in a litter with puppies from different fathers. There is no risk of some effect from a previous couple, to be present in her next heat, though people say, that if a pedigree female dog couples with a mixed-breed this will affect following litters.

My dog insists hugging my leg when I'm sitting. Is that normal?