B2B is just Body 2 Body, usually a Massage where you are both naked. But some may keep panties on.
Why it’s important to discuss beforehand, what their definition of B2B is. Often some girls will allow you to touch them. Or perform varying levels of foreplay without actual penetration. Some will be ok giving or receiving oral. It literally comes down to who your seeing, & what they/you have agreed before you start.
If B2B is s8mply just a body massage, & you didn’t do your homework first. Then it’s not really fair to downgrade that person. As she did what you booked, your fault for not asking....
That’s my view, some others might disagree. 🤔