How far is too far?

A few weeks ago on Halloween my bf and I were at a party. To keep the details short, he was hard and trying to get me to go home. I reminded him that we couldn't do anything while we were at a party, and teasingly told him that if he wanted me that bad, he'd already been fucking me. Us being in a far corner made him comfortable enough to drop me. He slid his cock hard against my face for a bit. I was scared we'd get caught but I loved that risk and sucked him off before going home. We used to be pretty vanilla before then, but ever since he's been trying new things and finding out what we like. Recently after a hard fucking and dirty talk session he got me say that I want to be fucked in front of other men. I honestly didn't like the thought too much but I was so turned on when he asked me that I would've said yes to anything. He's forced me to be naked at home all the time now since he thinks I want to be exposed. Well he had a friend come over against my will and I covered myself up when he arrived with a blanket. An hour later I had to use the restroom and completely forgot I was covering myself for a reason. The blanket fell and I could see him staring from the corner of my eye. I was embaressed but left to the restroom. I heard them talking from inside, his friend said I had an ass perfect for fucking. My bf told him that I secretly fantasized getting naked in front of guys and that I had just proven it. It wasn't true but I was getting hot hearing them talk about me this way. If my bf wanted me naked in front of his friend that's what I would do. I walked out and sat across from him, giving him a good view and letting my bf know he could see me. When he left he gave me a hug and squeezed my ass cheeks hard before snacking both sides. I brought my hand down to check if I was as turned on as I thought I was, and I definitely was. My bf told me he knew that I wouldn't be able to hold back dropping the towel and that next week he'd have 3 friends over. While I definitely found this experience hot and I'd be willing to be seen nude by his friends, how far is too far? He wants me to expose myself to them. His friend felt on my ass. Is that what he wants? To let guys feel all over his girls naked body? Should I tease them and make them play with my tits? Would that be too far? Or could I let them feel all over my body and blame him if he gets upset for forcing me to be naked in front of them. I want my bf to watch how much I'll enjoy it, but I don't want to ruin it either. Do you think he's expecting them to get touchy, or wiLl I be going too far letting them grope me?
Whatever happens I'll leave an update