Can only come in missionary?

Theresa • 🌸 17, bisexual, & ballin' 🌸
My boyfriend and I have tried a lot of different positions and he can cum in pretty much any position but I can only really come in missionary so far. I think this is mostly because I can only cum with enough clit stimulation and which i have easy access to with me on my back and him on top of me. 
That being said, I'd really like to try other things. Any suggestions?