If she is going to do this, just to please you, you both better think before you leap. Like the Rubicon, once the line is crossed it cannot be taken back. Is she ready to violate every legal and Religious code known? Are you ready to see another male, albeit a dog, take possession of what, 'til now has been yours alone ( in theory )? This is a major step, irreversible and can easily lead to breakups and Divorce.
For some of us, this is part of our basic self. For most here, its a voyuer's game. Think long and hard which it is for you. Buena Fortuna