Is it normal?

I have this kink where sometimes I want to imagine having my own penis. I want to figure out what it feels like to have a dick and balls like a guy does and how it feels just normally and how it feels masturbating/having sex. Sometimes I wish I had a strap on for my boyfriend to suck on so I could just imagine all that. I feel so weird for this, but my boyfriend is totally down if I want it. I'm not trans at all, I just really want to know what it's like to have those parts