DeeDeeinCO
Female
I think it's never hotter for a cuck than when the wife pushes the envelope. Kissing the bull after there's a no-kissing agreement, letting the bull feel her up on the dance floor after she said they'd only dance and flirt, starting a second round of fucking when the cuck is sent downstairs/to a guest room after the wife and cuck agreed that she'd only have sex with him present. Stuff like that!
What you just described sounds like the norm to me. There are those times when things just happen. You set limits, then things happen, like using a condom, then one isn't used. You say just vaginal, and then anal occurs. It just kind of happens. You say no kissing, then passion takes over. It isn't pushing the envelope. It's just nature taking it's course. Just like a man says he won't cum in your mouth, well, things happen.
A woman goes out on a "girl's night out." She has no intention of having sex with anyone, but then she meets this one guy, or two. And things just happen. It wasn't planned, but it wasn't turned down or advances rejected. You don't even think of having sex with your best friend's husband, but he comes on to you. He kisses you passionately. He gyrates his hips and rubs his erect cock against you. You know you shouldn't, but you also know you want it to happen. And then it happens. It just happens sometimes. Again, it isn't pushing the envelope. It's just nature taking it's course.
You go out with your husband and you notice this attractive guy looking you over. You feel attractive. You don't feel that way as often as you'd like. And now this stranger is looking you over and making kissing moves with his lips. You know he's confident because he knows you're with your husband, but that doesn't bother him. You know this guy could be fun in bed, and you think of how it would be to be with him, even for a short while. Your husband notices you looking at the guy looking at you and smiles. You didn't go out thinking about having sex with a stranger, but now the opportunity presents itself, or at least the possibility. This isn't pushing the envelope. This is something that just happens.
I would say pushing the envelope is doing something your husband would truly disapprove of, and not get excited by. Pushing the envelope would be a vanilla couple out together and the same thing happening with a stranger and the wife does hook up with the stranger, without the husband knowing or approving.
"When the cuck is sent downstairs/to a guest room after the wife and cuck agreed that she'd only have sex with him present" is nothing more than natural progression.