Booty rubs & pads??!!😳🤔

I recently got into a relationship and it's going great 🙌🏽. We talk about a lot and we have discussed my cycle how it is for me what I wear do I get moody are there certain things that I normally do or eat during that time ya know things like that. We are pretty open so far. So here's the thing normally at night I wear a pad that is long just to be protected especially on the first two nights. My boyfriend loves to rub smack play with my butt. We have a date night out of town so we got a hotel. How do you explain the pad or do you do you tell him about it or tell him not to rub your butt??? 😳🤔😨 I have no clue how to approach the situation or even the conversation. How do you ladies deal with pads and butt touchy boyfriends?