So be prepared this is going to be super long!

To start out my questions are if he truly does want to be friends with benefits (because that’s really all I want or what he’s doing) also what I should do about it.

My brother is 26 and I’m 18. So me and his friend are 8 years apart. His friend and him have been friends since I was a baby and at first I didn’t think of him as a friend or another brother because he just never acted like a brother. Anyways a little after I’ve turned 18 he’s been REALLY flirtatious and we’ve gotten closer but he’s been especially like this the past 2 days. So on Saturday my whole family including him and my brother went for a family get together. While we where there we both got SUPER drunk we had a ton of shots and drank some beers. So I was up dancing with my cousin and I walk over to him eating some candy and he starts to play with my bra he asks me what this is and I say it’s my bra and he stops. Next on his way out he smacks my ass not noticeably to everyone else but noticeable to me and says “see ya” I shrugged it off because we where both drunk and I thought that’s all that was. The next day I posted a picture of us the night before and he dms me “ straight baddies😍😍” as a reply to the picture. We talked for a little bit about random stuff and a little while after that he came over but I was asleep. I’m usually a heavy sleeper unless someone is looking at me then I wake up so I woke up and he’s standing right over me staring at me. He starts to walk away and says “ I thought you where dead don’t die ok” then I get up for a second to go get water and he’s in my spot laying down so I sit on the couch far enough away from him that I can lay down. Anyways he started out with his feet on his side of the couch and slowly he gets them to my side and starts hitting my ass with his foot. Then he gets it under the blankets and starts to rub my ass and get closer to my vagina. Then it all stops suddenly and he gets up to leave and go find his keys but they where in my moms car so i walk him out and as he goes to leave he cups but only lightly the bottom of my boob and says “ bye loser”. All this is obvious he wants to fuck but then I posted a little friends with benefits thing and he said “ yo chill” like wtf does that mean. I’m confused can anyone help me!