Is it weird I wanna be with my friend?

So I’ve known my friend since 1st grade. We ended up losing contact for a few years & recently got back In touch & hung out a few times. One night we got drunk having a good time & I noticed I just kept checking her out & ever since then kinda wanted to sleep with her...😩 we both have boyfriends & ive only been with one girl and I wasn’t into it much but she has me rethinking. Is this weird..? Should I tell her this?