The more u can get Mary to get excited on her own about the new lifestyle and make it so it becomes "her idea" the better and more enjoyable it will be for you both. She will look forward to it and move ahead. Far better that way. U don't want to be seen as "pushing" her into it. Plant the seeds from both sides, u and your friend in a subtle way and let her connect the dots. Trust me. If u water the grass right, it will grow! U just need to nurture that "inner slut" is such a way that she takes the lead. U and your friend can assist, but let her put it together, connect the dots and go for it. Just give her the right support, hints and plenty of running room so she can move ahead with her new stud. Most women have to overcome the behavioral modes that society has proscribed for them. Looks like he has a great cock to pleasure her and cuck u with. And with any luck, this will just be the beginning. If she likes the lifestyle, she very well might become a very active hotwife with multiple bulls. Good luck and keep us posted.