Married couple fucks on the stairs and the neighbor catches them

How do you notice when a married couple hasn't been married for a long time and they're still horny as rabbits and wanting to fuck in the most daring places and situations, and these two went out to the stairs to have a good fuck, when suddenly the neighbor caught them, a tremendous and very slutty blonde who instead of complaining about what they were doing asked if she could participate, and that's how they ended up at her house, the two of them tasting that very hard cock and sharing milk like good neighbors.