How to open up about how me being rape and molested affects my sex life and a huge way to my boyfriend

How do I tell my bf that I don’t like penetration because of what happened to me in my pass sex doesn’t do anything for me stimulation and foreplay do I don’t like penetration at all and I think that make me weird no boy i even had sex with please me with penetration I only ever came off stimulation or foreplay. That’s why I always use vibrators.